drivers/gpu/drm/drm_crtc.c

   1 /*
   2  * Copyright (c) 2006-2008 Intel Corporation
   3  * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
   4  * Copyright (c) 2008 Red Hat Inc.
   5  *
   6  * DRM core CRTC related functions
   7  *
   8  * Permission to use, copy, modify, distribute, and sell this software and its
   9  * documentation for any purpose is hereby granted without fee, provided that
  10  * the above copyright notice appear in all copies and that both that copyright
  11  * notice and this permission notice appear in supporting documentation, and
  12  * that the name of the copyright holders not be used in advertising or
  13  * publicity pertaining to distribution of the software without specific,
  14  * written prior permission.  The copyright holders make no representations
  15  * about the suitability of this software for any purpose.  It is provided "as
  16  * is" without express or implied warranty.
  17  *
  18  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  19  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  20  * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  21  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  22  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  23  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  24  * OF THIS SOFTWARE.
  25  *
  26  * Authors:
  27  *      Keith Packard
  28  *      Eric Anholt <eric@anholt.net>
  29  *      Dave Airlie <airlied@linux.ie>
  30  *      Jesse Barnes <jesse.barnes@intel.com>
  31  */
  32 #include <linux/list.h>
  33 #include <linux/slab.h>
  34 #include <linux/export.h>
  35 #include "drm.h"
  36 #include "drmP.h"
  37 #include "drm_crtc.h"
  38 #include "drm_edid.h"
  39 #include "drm_fourcc.h"
  40
  41 /* Avoid boilerplate.  I'm tired of typing. */
  42 #define DRM_ENUM_NAME_FN(fnname, list)                          \
  43         char *fnname(int val)                                   \
  44         {                                                       \
  45                 int i;                                          \
  46                 for (i = 0; i < ARRAY_SIZE(list); i++) {        \
  47                         if (list[i].type == val)                \
  48                                 return list[i].name;            \
  49                 }                                               \
  50                 return "(unknown)";                             \
  51         }
  52
  53 /*
  54  * Global properties
  55  */
  56 static struct drm_prop_enum_list drm_dpms_enum_list[] =
  57 {       { DRM_MODE_DPMS_ON, "On" },
  58         { DRM_MODE_DPMS_STANDBY, "Standby" },
  59         { DRM_MODE_DPMS_SUSPEND, "Suspend" },
  60         { DRM_MODE_DPMS_OFF, "Off" }
  61 };
  62
  63 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
  64
  65 /*
  66  * Optional properties
  67  */
  68 static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
  69 {
  70         { DRM_MODE_SCALE_NONE, "None" },
  71         { DRM_MODE_SCALE_FULLSCREEN, "Full" },
  72         { DRM_MODE_SCALE_CENTER, "Center" },
  73         { DRM_MODE_SCALE_ASPECT, "Full aspect" },
  74 };
  75
  76 static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
  77 {
  78         { DRM_MODE_DITHERING_OFF, "Off" },
  79         { DRM_MODE_DITHERING_ON, "On" },
  80         { DRM_MODE_DITHERING_AUTO, "Automatic" },
  81 };
  82
  83 /*
  84  * Non-global properties, but "required" for certain connectors.
  85  */
  86 static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
  87 {
  88         { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
  89         { DRM_MODE_SUBCONNECTOR_DVID,      "DVI-D"     }, /* DVI-I  */
  90         { DRM_MODE_SUBCONNECTOR_DVIA,      "DVI-A"     }, /* DVI-I  */
  91 };
  92
  93 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
  94
  95 static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
  96 {
  97         { DRM_MODE_SUBCONNECTOR_Unknown,   "Unknown"   }, /* DVI-I and TV-out */
  98         { DRM_MODE_SUBCONNECTOR_DVID,      "DVI-D"     }, /* DVI-I  */
  99         { DRM_MODE_SUBCONNECTOR_DVIA,      "DVI-A"     }, /* DVI-I  */
 100 };
 101
 102 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
 103                  drm_dvi_i_subconnector_enum_list)
 104
 105 static struct drm_prop_enum_list drm_tv_select_enum_list[] =
 106 {
 107         { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
 108         { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
 109         { DRM_MODE_SUBCONNECTOR_SVIDEO,    "SVIDEO"    }, /* TV-out */
 110         { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
 111         { DRM_MODE_SUBCONNECTOR_SCART,     "SCART"     }, /* TV-out */
 112 };
 113
 114 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
 115
 116 static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
 117 {
 118         { DRM_MODE_SUBCONNECTOR_Unknown,   "Unknown"   }, /* DVI-I and TV-out */
 119         { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
 120         { DRM_MODE_SUBCONNECTOR_SVIDEO,    "SVIDEO"    }, /* TV-out */
 121         { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
 122         { DRM_MODE_SUBCONNECTOR_SCART,     "SCART"     }, /* TV-out */
 123 };
 124
 125 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
 126                  drm_tv_subconnector_enum_list)
 127
 128 static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
 129         { DRM_MODE_DIRTY_OFF,      "Off"      },
 130         { DRM_MODE_DIRTY_ON,       "On"       },
 131         { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
 132 };
 133
 134 DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
 135                  drm_dirty_info_enum_list)
 136
 137 struct drm_conn_prop_enum_list {
 138         int type;
 139         char *name;
 140         int count;
 141 };
 142
 143 /*
 144  * Connector and encoder types.
 145  */
 146 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
 147 {       { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
 148         { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
 149         { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
 150         { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
 151         { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
 152         { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
 153         { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
 154         { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
 155         { DRM_MODE_CONNECTOR_Component, "Component", 0 },
 156         { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
 157         { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
 158         { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
 159         { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
 160         { DRM_MODE_CONNECTOR_TV, "TV", 0 },
 161         { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
 162         { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0},
 163 };
 164
 165 static struct drm_prop_enum_list drm_encoder_enum_list[] =
 166 {       { DRM_MODE_ENCODER_NONE, "None" },
 167         { DRM_MODE_ENCODER_DAC, "DAC" },
 168         { DRM_MODE_ENCODER_TMDS, "TMDS" },
 169         { DRM_MODE_ENCODER_LVDS, "LVDS" },
 170         { DRM_MODE_ENCODER_TVDAC, "TV" },
 171         { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
 172 };
 173
 174 char *drm_get_encoder_name(struct drm_encoder *encoder)
 175 {
 176         static char buf[32];
 177
 178         snprintf(buf, 32, "%s-%d",
 179                  drm_encoder_enum_list[encoder->encoder_type].name,
 180                  encoder->base.id);
 181         return buf;
 182 }
 183 EXPORT_SYMBOL(drm_get_encoder_name);
 184
 185 char *drm_get_connector_name(struct drm_connector *connector)
 186 {
 187         static char buf[32];
 188
 189         snprintf(buf, 32, "%s-%d",
 190                  drm_connector_enum_list[connector->connector_type].name,
 191                  connector->connector_type_id);
 192         return buf;
 193 }
 194 EXPORT_SYMBOL(drm_get_connector_name);
 195
 196 char *drm_get_connector_status_name(enum drm_connector_status status)
 197 {
 198         if (status == connector_status_connected)
 199                 return "connected";
 200         else if (status == connector_status_disconnected)
 201                 return "disconnected";
 202         else
 203                 return "unknown";
 204 }
 205
 206 /**
 207  * drm_mode_object_get - allocate a new identifier
 208  * @dev: DRM device
 209  * @ptr: object pointer, used to generate unique ID
 210  * @type: object type
 211  *
 212  * LOCKING:
 213  *
 214  * Create a unique identifier based on @ptr in @dev's identifier space.  Used
 215  * for tracking modes, CRTCs and connectors.
 216  *
 217  * RETURNS:
 218  * New unique (relative to other objects in @dev) integer identifier for the
 219  * object.
 220  */
 221 static int drm_mode_object_get(struct drm_device *dev,
 222                                struct drm_mode_object *obj, uint32_t obj_type)
 223 {
 224         int new_id = 0;
 225         int ret;
 226
 227 again:
 228         if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
 229                 DRM_ERROR("Ran out memory getting a mode number\n");
 230                 return -EINVAL;
 231         }
 232
 233         mutex_lock(&dev->mode_config.idr_mutex);
 234         ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
 235         mutex_unlock(&dev->mode_config.idr_mutex);
 236         if (ret == -EAGAIN)
 237                 goto again;
 238
 239         obj->id = new_id;
 240         obj->type = obj_type;
 241         return 0;
 242 }
 243
 244 /**
 245  * drm_mode_object_put - free an identifer
 246  * @dev: DRM device
 247  * @id: ID to free
 248  *
 249  * LOCKING:
 250  * Caller must hold DRM mode_config lock.
 251  *
 252  * Free @id from @dev's unique identifier pool.
 253  */
 254 static void drm_mode_object_put(struct drm_device *dev,
 255                                 struct drm_mode_object *object)
 256 {
 257         mutex_lock(&dev->mode_config.idr_mutex);
 258         idr_remove(&dev->mode_config.crtc_idr, object->id);
 259         mutex_unlock(&dev->mode_config.idr_mutex);
 260 }
 261
 262 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
 263                 uint32_t id, uint32_t type)
 264 {
 265         struct drm_mode_object *obj = NULL;
 266
 267         mutex_lock(&dev->mode_config.idr_mutex);
 268         obj = idr_find(&dev->mode_config.crtc_idr, id);
 269         if (!obj || (obj->type != type) || (obj->id != id))
 270                 obj = NULL;
 271         mutex_unlock(&dev->mode_config.idr_mutex);
 272
 273         return obj;
 274 }
 275 EXPORT_SYMBOL(drm_mode_object_find);
 276
 277 /**
 278  * drm_framebuffer_init - initialize a framebuffer
 279  * @dev: DRM device
 280  *
 281  * LOCKING:
 282  * Caller must hold mode config lock.
 283  *
 284  * Allocates an ID for the framebuffer's parent mode object, sets its mode
 285  * functions & device file and adds it to the master fd list.
 286  *
 287  * RETURNS:
 288  * Zero on success, error code on failure.
 289  */
 290 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
 291                          const struct drm_framebuffer_funcs *funcs)
 292 {
 293         int ret;
 294
 295         ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
 296         if (ret) {
 297                 return ret;
 298         }
 299
 300         fb->dev = dev;
 301         fb->funcs = funcs;
 302         dev->mode_config.num_fb++;
 303         list_add(&fb->head, &dev->mode_config.fb_list);
 304
 305         return 0;
 306 }
 307 EXPORT_SYMBOL(drm_framebuffer_init);
 308
 309 /**
 310  * drm_framebuffer_cleanup - remove a framebuffer object
 311  * @fb: framebuffer to remove
 312  *
 313  * LOCKING:
 314  * Caller must hold mode config lock.
 315  *
 316  * Scans all the CRTCs in @dev's mode_config.  If they're using @fb, removes
 317  * it, setting it to NULL.
 318  */
 319 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
 320 {
 321         struct drm_device *dev = fb->dev;
 322         struct drm_crtc *crtc;
 323         struct drm_plane *plane;
 324         struct drm_mode_set set;
 325         int ret;
 326
 327         /* remove from any CRTC */
 328         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 329                 if (crtc->fb == fb) {
 330                         /* should turn off the crtc */
 331                         memset(&set, 0, sizeof(struct drm_mode_set));
 332                         set.crtc = crtc;
 333                         set.fb = NULL;
 334                         ret = crtc->funcs->set_config(&set);
 335                         if (ret)
 336                                 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
 337                 }
 338         }
 339
 340         list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
 341                 if (plane->fb == fb) {
 342                         /* should turn off the crtc */
 343                         ret = plane->funcs->disable_plane(plane);
 344                         if (ret)
 345                                 DRM_ERROR("failed to disable plane with busy fb\n");
 346                         /* disconnect the plane from the fb and crtc: */
 347                         plane->fb = NULL;
 348                         plane->crtc = NULL;
 349                 }
 350         }
 351
 352         drm_mode_object_put(dev, &fb->base);
 353         list_del(&fb->head);
 354         dev->mode_config.num_fb--;
 355 }
 356 EXPORT_SYMBOL(drm_framebuffer_cleanup);
 357
 358 /**
 359  * drm_crtc_init - Initialise a new CRTC object
 360  * @dev: DRM device
 361  * @crtc: CRTC object to init
 362  * @funcs: callbacks for the new CRTC
 363  *
 364  * LOCKING:
 365  * Caller must hold mode config lock.
 366  *
 367  * Inits a new object created as base part of an driver crtc object.
 368  */
 369 void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
 370                    const struct drm_crtc_funcs *funcs)
 371 {
 372         crtc->dev = dev;
 373         crtc->funcs = funcs;
 374
 375         mutex_lock(&dev->mode_config.mutex);
 376         drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
 377
 378         list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
 379         dev->mode_config.num_crtc++;
 380         mutex_unlock(&dev->mode_config.mutex);
 381 }
 382 EXPORT_SYMBOL(drm_crtc_init);
 383
 384 /**
 385  * drm_crtc_cleanup - Cleans up the core crtc usage.
 386  * @crtc: CRTC to cleanup
 387  *
 388  * LOCKING:
 389  * Caller must hold mode config lock.
 390  *
 391  * Cleanup @crtc. Removes from drm modesetting space
 392  * does NOT free object, caller does that.
 393  */
 394 void drm_crtc_cleanup(struct drm_crtc *crtc)
 395 {
 396         struct drm_device *dev = crtc->dev;
 397
 398         if (crtc->gamma_store) {
 399                 kfree(crtc->gamma_store);
 400                 crtc->gamma_store = NULL;
 401         }
 402
 403         drm_mode_object_put(dev, &crtc->base);
 404         list_del(&crtc->head);
 405         dev->mode_config.num_crtc--;
 406 }
 407 EXPORT_SYMBOL(drm_crtc_cleanup);
 408
 409 /**
 410  * drm_mode_probed_add - add a mode to a connector's probed mode list
 411  * @connector: connector the new mode
 412  * @mode: mode data
 413  *
 414  * LOCKING:
 415  * Caller must hold mode config lock.
 416  *
 417  * Add @mode to @connector's mode list for later use.
 418  */
 419 void drm_mode_probed_add(struct drm_connector *connector,
 420                          struct drm_display_mode *mode)
 421 {
 422         list_add(&mode->head, &connector->probed_modes);
 423 }
 424 EXPORT_SYMBOL(drm_mode_probed_add);
 425
 426 /**
 427  * drm_mode_remove - remove and free a mode
 428  * @connector: connector list to modify
 429  * @mode: mode to remove
 430  *
 431  * LOCKING:
 432  * Caller must hold mode config lock.
 433  *
 434  * Remove @mode from @connector's mode list, then free it.
 435  */
 436 void drm_mode_remove(struct drm_connector *connector,
 437                      struct drm_display_mode *mode)
 438 {
 439         list_del(&mode->head);
 440         drm_mode_destroy(connector->dev, mode);
 441 }
 442 EXPORT_SYMBOL(drm_mode_remove);
 443
 444 /**
 445  * drm_connector_init - Init a preallocated connector
 446  * @dev: DRM device
 447  * @connector: the connector to init
 448  * @funcs: callbacks for this connector
 449  * @name: user visible name of the connector
 450  *
 451  * LOCKING:
 452  * Takes mode config lock.
 453  *
 454  * Initialises a preallocated connector. Connectors should be
 455  * subclassed as part of driver connector objects.
 456  */
 457 void drm_connector_init(struct drm_device *dev,
 458                      struct drm_connector *connector,
 459                      const struct drm_connector_funcs *funcs,
 460                      int connector_type)
 461 {
 462         mutex_lock(&dev->mode_config.mutex);
 463
 464         connector->dev = dev;
 465         connector->funcs = funcs;
 466         drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
 467         connector->connector_type = connector_type;
 468         connector->connector_type_id =
 469                 ++drm_connector_enum_list[connector_type].count; /* TODO */
 470         INIT_LIST_HEAD(&connector->user_modes);
 471         INIT_LIST_HEAD(&connector->probed_modes);
 472         INIT_LIST_HEAD(&connector->modes);
 473         connector->edid_blob_ptr = NULL;
 474
 475         list_add_tail(&connector->head, &dev->mode_config.connector_list);
 476         dev->mode_config.num_connector++;
 477
 478         if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
 479                 drm_connector_attach_property(connector,
 480                                               dev->mode_config.edid_property,
 481                                               0);
 482
 483         drm_connector_attach_property(connector,
 484                                       dev->mode_config.dpms_property, 0);
 485
 486         mutex_unlock(&dev->mode_config.mutex);
 487 }
 488 EXPORT_SYMBOL(drm_connector_init);
 489
 490 /**
 491  * drm_connector_cleanup - cleans up an initialised connector
 492  * @connector: connector to cleanup
 493  *
 494  * LOCKING:
 495  * Takes mode config lock.
 496  *
 497  * Cleans up the connector but doesn't free the object.
 498  */
 499 void drm_connector_cleanup(struct drm_connector *connector)
 500 {
 501         struct drm_device *dev = connector->dev;
 502         struct drm_display_mode *mode, *t;
 503
 504         list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
 505                 drm_mode_remove(connector, mode);
 506
 507         list_for_each_entry_safe(mode, t, &connector->modes, head)
 508                 drm_mode_remove(connector, mode);
 509
 510         list_for_each_entry_safe(mode, t, &connector->user_modes, head)
 511                 drm_mode_remove(connector, mode);
 512
 513         mutex_lock(&dev->mode_config.mutex);
 514         drm_mode_object_put(dev, &connector->base);
 515         list_del(&connector->head);
 516         dev->mode_config.num_connector--;
 517         mutex_unlock(&dev->mode_config.mutex);
 518 }
 519 EXPORT_SYMBOL(drm_connector_cleanup);
 520
 521 void drm_encoder_init(struct drm_device *dev,
 522                       struct drm_encoder *encoder,
 523                       const struct drm_encoder_funcs *funcs,
 524                       int encoder_type)
 525 {
 526         mutex_lock(&dev->mode_config.mutex);
 527
 528         encoder->dev = dev;
 529
 530         drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
 531         encoder->encoder_type = encoder_type;
 532         encoder->funcs = funcs;
 533
 534         list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
 535         dev->mode_config.num_encoder++;
 536
 537         mutex_unlock(&dev->mode_config.mutex);
 538 }
 539 EXPORT_SYMBOL(drm_encoder_init);
 540
 541 void drm_encoder_cleanup(struct drm_encoder *encoder)
 542 {
 543         struct drm_device *dev = encoder->dev;
 544         mutex_lock(&dev->mode_config.mutex);
 545         drm_mode_object_put(dev, &encoder->base);
 546         list_del(&encoder->head);
 547         dev->mode_config.num_encoder--;
 548         mutex_unlock(&dev->mode_config.mutex);
 549 }
 550 EXPORT_SYMBOL(drm_encoder_cleanup);
 551
 552 int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
 553                    unsigned long possible_crtcs,
 554                    const struct drm_plane_funcs *funcs,
 555                    const uint32_t *formats, uint32_t format_count,
 556                    bool priv)
 557 {
 558         mutex_lock(&dev->mode_config.mutex);
 559
 560         plane->dev = dev;
 561         drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
 562         plane->funcs = funcs;
 563         plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
 564                                       GFP_KERNEL);
 565         if (!plane->format_types) {
 566                 DRM_DEBUG_KMS("out of memory when allocating plane\n");
 567                 drm_mode_object_put(dev, &plane->base);
 568                 mutex_unlock(&dev->mode_config.mutex);
 569                 return -ENOMEM;
 570         }
 571
 572         memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
 573         plane->format_count = format_count;
 574         plane->possible_crtcs = possible_crtcs;
 575
 576         /* private planes are not exposed to userspace, but depending on
 577          * display hardware, might be convenient to allow sharing programming
 578          * for the scanout engine with the crtc implementation.
 579          */
 580         if (!priv) {
 581                 list_add_tail(&plane->head, &dev->mode_config.plane_list);
 582                 dev->mode_config.num_plane++;
 583         } else {
 584                 INIT_LIST_HEAD(&plane->head);
 585         }
 586
 587         mutex_unlock(&dev->mode_config.mutex);
 588
 589         return 0;
 590 }
 591 EXPORT_SYMBOL(drm_plane_init);
 592
 593 void drm_plane_cleanup(struct drm_plane *plane)
 594 {
 595         struct drm_device *dev = plane->dev;
 596
 597         mutex_lock(&dev->mode_config.mutex);
 598         kfree(plane->format_types);
 599         drm_mode_object_put(dev, &plane->base);
 600         /* if not added to a list, it must be a private plane */
 601         if (!list_empty(&plane->head)) {
 602                 list_del(&plane->head);
 603                 dev->mode_config.num_plane--;
 604         }
 605         mutex_unlock(&dev->mode_config.mutex);
 606 }
 607 EXPORT_SYMBOL(drm_plane_cleanup);
 608
 609 /**
 610  * drm_mode_create - create a new display mode
 611  * @dev: DRM device
 612  *
 613  * LOCKING:
 614  * Caller must hold DRM mode_config lock.
 615  *
 616  * Create a new drm_display_mode, give it an ID, and return it.
 617  *
 618  * RETURNS:
 619  * Pointer to new mode on success, NULL on error.
 620  */
 621 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
 622 {
 623         struct drm_display_mode *nmode;
 624
 625         nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
 626         if (!nmode)
 627                 return NULL;
 628
 629         drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
 630         return nmode;
 631 }
 632 EXPORT_SYMBOL(drm_mode_create);
 633
 634 /**
 635  * drm_mode_destroy - remove a mode
 636  * @dev: DRM device
 637  * @mode: mode to remove
 638  *
 639  * LOCKING:
 640  * Caller must hold mode config lock.
 641  *
 642  * Free @mode's unique identifier, then free it.
 643  */
 644 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
 645 {
 646         drm_mode_object_put(dev, &mode->base);
 647
 648         kfree(mode);
 649 }
 650 EXPORT_SYMBOL(drm_mode_destroy);
 651
 652 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
 653 {
 654         struct drm_property *edid;
 655         struct drm_property *dpms;
 656
 657         /*
 658          * Standard properties (apply to all connectors)
 659          */
 660         edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
 661                                    DRM_MODE_PROP_IMMUTABLE,
 662                                    "EDID", 0);
 663         dev->mode_config.edid_property = edid;
 664
 665         dpms = drm_property_create_enum(dev, 0,
 666                                    "DPMS", drm_dpms_enum_list,
 667                                    ARRAY_SIZE(drm_dpms_enum_list));
 668         dev->mode_config.dpms_property = dpms;
 669
 670         return 0;
 671 }
 672
 673 /**
 674  * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
 675  * @dev: DRM device
 676  *
 677  * Called by a driver the first time a DVI-I connector is made.
 678  */
 679 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
 680 {
 681         struct drm_property *dvi_i_selector;
 682         struct drm_property *dvi_i_subconnector;
 683
 684         if (dev->mode_config.dvi_i_select_subconnector_property)
 685                 return 0;
 686
 687         dvi_i_selector =
 688                 drm_property_create_enum(dev, 0,
 689                                     "select subconnector",
 690                                     drm_dvi_i_select_enum_list,
 691                                     ARRAY_SIZE(drm_dvi_i_select_enum_list));
 692         dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
 693
 694         dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
 695                                     "subconnector",
 696                                     drm_dvi_i_subconnector_enum_list,
 697                                     ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
 698         dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
 699
 700         return 0;
 701 }
 702 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
 703
 704 /**
 705  * drm_create_tv_properties - create TV specific connector properties
 706  * @dev: DRM device
 707  * @num_modes: number of different TV formats (modes) supported
 708  * @modes: array of pointers to strings containing name of each format
 709  *
 710  * Called by a driver's TV initialization routine, this function creates
 711  * the TV specific connector properties for a given device.  Caller is
 712  * responsible for allocating a list of format names and passing them to
 713  * this routine.
 714  */
 715 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
 716                                   char *modes[])
 717 {
 718         struct drm_property *tv_selector;
 719         struct drm_property *tv_subconnector;
 720         int i;
 721
 722         if (dev->mode_config.tv_select_subconnector_property)
 723                 return 0;
 724
 725         /*
 726          * Basic connector properties
 727          */
 728         tv_selector = drm_property_create_enum(dev, 0,
 729                                           "select subconnector",
 730                                           drm_tv_select_enum_list,
 731                                           ARRAY_SIZE(drm_tv_select_enum_list));
 732         dev->mode_config.tv_select_subconnector_property = tv_selector;
 733
 734         tv_subconnector =
 735                 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
 736                                     "subconnector",
 737                                     drm_tv_subconnector_enum_list,
 738                                     ARRAY_SIZE(drm_tv_subconnector_enum_list));
 739         dev->mode_config.tv_subconnector_property = tv_subconnector;
 740
 741         /*
 742          * Other, TV specific properties: margins & TV modes.
 743          */
 744         dev->mode_config.tv_left_margin_property =
 745                 drm_property_create_range(dev, 0, "left margin", 0, 100);
 746
 747         dev->mode_config.tv_right_margin_property =
 748                 drm_property_create_range(dev, 0, "right margin", 0, 100);
 749
 750         dev->mode_config.tv_top_margin_property =
 751                 drm_property_create_range(dev, 0, "top margin", 0, 100);
 752
 753         dev->mode_config.tv_bottom_margin_property =
 754                 drm_property_create_range(dev, 0, "bottom margin", 0, 100);
 755
 756         dev->mode_config.tv_mode_property =
 757                 drm_property_create(dev, DRM_MODE_PROP_ENUM,
 758                                     "mode", num_modes);
 759         for (i = 0; i < num_modes; i++)
 760                 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
 761                                       i, modes[i]);
 762
 763         dev->mode_config.tv_brightness_property =
 764                 drm_property_create_range(dev, 0, "brightness", 0, 100);
 765
 766         dev->mode_config.tv_contrast_property =
 767                 drm_property_create_range(dev, 0, "contrast", 0, 100);
 768
 769         dev->mode_config.tv_flicker_reduction_property =
 770                 drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
 771
 772         dev->mode_config.tv_overscan_property =
 773                 drm_property_create_range(dev, 0, "overscan", 0, 100);
 774
 775         dev->mode_config.tv_saturation_property =
 776                 drm_property_create_range(dev, 0, "saturation", 0, 100);
 777
 778         dev->mode_config.tv_hue_property =
 779                 drm_property_create_range(dev, 0, "hue", 0, 100);
 780
 781         return 0;
 782 }
 783 EXPORT_SYMBOL(drm_mode_create_tv_properties);
 784
 785 /**
 786  * drm_mode_create_scaling_mode_property - create scaling mode property
 787  * @dev: DRM device
 788  *
 789  * Called by a driver the first time it's needed, must be attached to desired
 790  * connectors.
 791  */
 792 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
 793 {
 794         struct drm_property *scaling_mode;
 795
 796         if (dev->mode_config.scaling_mode_property)
 797                 return 0;
 798
 799         scaling_mode =
 800                 drm_property_create_enum(dev, 0, "scaling mode",
 801                                 drm_scaling_mode_enum_list,
 802                                     ARRAY_SIZE(drm_scaling_mode_enum_list));
 803
 804         dev->mode_config.scaling_mode_property = scaling_mode;
 805
 806         return 0;
 807 }
 808 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
 809
 810 /**
 811  * drm_mode_create_dithering_property - create dithering property
 812  * @dev: DRM device
 813  *
 814  * Called by a driver the first time it's needed, must be attached to desired
 815  * connectors.
 816  */
 817 int drm_mode_create_dithering_property(struct drm_device *dev)
 818 {
 819         struct drm_property *dithering_mode;
 820
 821         if (dev->mode_config.dithering_mode_property)
 822                 return 0;
 823
 824         dithering_mode =
 825                 drm_property_create_enum(dev, 0, "dithering",
 826                                 drm_dithering_mode_enum_list,
 827                                     ARRAY_SIZE(drm_dithering_mode_enum_list));
 828         dev->mode_config.dithering_mode_property = dithering_mode;
 829
 830         return 0;
 831 }
 832 EXPORT_SYMBOL(drm_mode_create_dithering_property);
 833
 834 /**
 835  * drm_mode_create_dirty_property - create dirty property
 836  * @dev: DRM device
 837  *
 838  * Called by a driver the first time it's needed, must be attached to desired
 839  * connectors.
 840  */
 841 int drm_mode_create_dirty_info_property(struct drm_device *dev)
 842 {
 843         struct drm_property *dirty_info;
 844
 845         if (dev->mode_config.dirty_info_property)
 846                 return 0;
 847
 848         dirty_info =
 849                 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
 850                                     "dirty",
 851                                     drm_dirty_info_enum_list,
 852                                     ARRAY_SIZE(drm_dirty_info_enum_list));
 853         dev->mode_config.dirty_info_property = dirty_info;
 854
 855         return 0;
 856 }
 857 EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
 858
 859 /**
 860  * drm_mode_config_init - initialize DRM mode_configuration structure
 861  * @dev: DRM device
 862  *
 863  * LOCKING:
 864  * None, should happen single threaded at init time.
 865  *
 866  * Initialize @dev's mode_config structure, used for tracking the graphics
 867  * configuration of @dev.
 868  */
 869 void drm_mode_config_init(struct drm_device *dev)
 870 {
 871         mutex_init(&dev->mode_config.mutex);
 872         mutex_init(&dev->mode_config.idr_mutex);
 873         INIT_LIST_HEAD(&dev->mode_config.fb_list);
 874         INIT_LIST_HEAD(&dev->mode_config.crtc_list);
 875         INIT_LIST_HEAD(&dev->mode_config.connector_list);
 876         INIT_LIST_HEAD(&dev->mode_config.encoder_list);
 877         INIT_LIST_HEAD(&dev->mode_config.property_list);
 878         INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
 879         INIT_LIST_HEAD(&dev->mode_config.plane_list);
 880         idr_init(&dev->mode_config.crtc_idr);
 881
 882         mutex_lock(&dev->mode_config.mutex);
 883         drm_mode_create_standard_connector_properties(dev);
 884         mutex_unlock(&dev->mode_config.mutex);
 885
 886         /* Just to be sure */
 887         dev->mode_config.num_fb = 0;
 888         dev->mode_config.num_connector = 0;
 889         dev->mode_config.num_crtc = 0;
 890         dev->mode_config.num_encoder = 0;
 891 }
 892 EXPORT_SYMBOL(drm_mode_config_init);
 893
 894 int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
 895 {
 896         uint32_t total_objects = 0;
 897
 898         total_objects += dev->mode_config.num_crtc;
 899         total_objects += dev->mode_config.num_connector;
 900         total_objects += dev->mode_config.num_encoder;
 901
 902         group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
 903         if (!group->id_list)
 904                 return -ENOMEM;
 905
 906         group->num_crtcs = 0;
 907         group->num_connectors = 0;
 908         group->num_encoders = 0;
 909         return 0;
 910 }
 911
 912 int drm_mode_group_init_legacy_group(struct drm_device *dev,
 913                                      struct drm_mode_group *group)
 914 {
 915         struct drm_crtc *crtc;
 916         struct drm_encoder *encoder;
 917         struct drm_connector *connector;
 918         int ret;
 919
 920         if ((ret = drm_mode_group_init(dev, group)))
 921                 return ret;
 922
 923         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
 924                 group->id_list[group->num_crtcs++] = crtc->base.id;
 925
 926         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
 927                 group->id_list[group->num_crtcs + group->num_encoders++] =
 928                 encoder->base.id;
 929
 930         list_for_each_entry(connector, &dev->mode_config.connector_list, head)
 931                 group->id_list[group->num_crtcs + group->num_encoders +
 932                                group->num_connectors++] = connector->base.id;
 933
 934         return 0;
 935 }
 936
 937 /**
 938  * drm_mode_config_cleanup - free up DRM mode_config info
 939  * @dev: DRM device
 940  *
 941  * LOCKING:
 942  * Caller must hold mode config lock.
 943  *
 944  * Free up all the connectors and CRTCs associated with this DRM device, then
 945  * free up the framebuffers and associated buffer objects.
 946  *
 947  * FIXME: cleanup any dangling user buffer objects too
 948  */
 949 void drm_mode_config_cleanup(struct drm_device *dev)
 950 {
 951         struct drm_connector *connector, *ot;
 952         struct drm_crtc *crtc, *ct;
 953         struct drm_encoder *encoder, *enct;
 954         struct drm_framebuffer *fb, *fbt;
 955         struct drm_property *property, *pt;
 956         struct drm_plane *plane, *plt;
 957
 958         list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
 959                                  head) {
 960                 encoder->funcs->destroy(encoder);
 961         }
 962
 963         list_for_each_entry_safe(connector, ot,
 964                                  &dev->mode_config.connector_list, head) {
 965                 connector->funcs->destroy(connector);
 966         }
 967
 968         list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
 969                                  head) {
 970                 drm_property_destroy(dev, property);
 971         }
 972
 973         list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
 974                 fb->funcs->destroy(fb);
 975         }
 976
 977         list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
 978                 crtc->funcs->destroy(crtc);
 979         }
 980
 981         list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
 982                                  head) {
 983                 plane->funcs->destroy(plane);
 984         }
 985
 986         idr_remove_all(&dev->mode_config.crtc_idr);
 987         idr_destroy(&dev->mode_config.crtc_idr);
 988 }
 989 EXPORT_SYMBOL(drm_mode_config_cleanup);
 990
 991 /**
 992  * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
 993  * @out: drm_mode_modeinfo struct to return to the user
 994  * @in: drm_display_mode to use
 995  *
 996  * LOCKING:
 997  * None.
 998  *
 999  * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1000  * the user.
1001  */
1002 void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1003                                struct drm_display_mode *in)
1004 {
1005         WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
1006              in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
1007              in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
1008              in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
1009              in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX,
1010              "timing values too large for mode info\n");
1011
1012         out->clock = in->clock;
1013         out->hdisplay = in->hdisplay;
1014         out->hsync_start = in->hsync_start;
1015         out->hsync_end = in->hsync_end;
1016         out->htotal = in->htotal;
1017         out->hskew = in->hskew;
1018         out->vdisplay = in->vdisplay;
1019         out->vsync_start = in->vsync_start;
1020         out->vsync_end = in->vsync_end;
1021         out->vtotal = in->vtotal;
1022         out->vscan = in->vscan;
1023         out->vrefresh = in->vrefresh;
1024         out->flags = in->flags;
1025         out->type = in->type;
1026         strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1027         out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1028 }
1029
1030 /**
1031  * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1032  * @out: drm_display_mode to return to the user
1033  * @in: drm_mode_modeinfo to use
1034  *
1035  * LOCKING:
1036  * None.
1037  *
1038  * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1039  * the caller.
1040  */
1041 void drm_crtc_convert_umode(struct drm_display_mode *out,
1042                             struct drm_mode_modeinfo *in)
1043 {
1044         out->clock = in->clock;
1045         out->hdisplay = in->hdisplay;
1046         out->hsync_start = in->hsync_start;
1047         out->hsync_end = in->hsync_end;
1048         out->htotal = in->htotal;
1049         out->hskew = in->hskew;
1050         out->vdisplay = in->vdisplay;
1051         out->vsync_start = in->vsync_start;
1052         out->vsync_end = in->vsync_end;
1053         out->vtotal = in->vtotal;
1054         out->vscan = in->vscan;
1055         out->vrefresh = in->vrefresh;
1056         out->flags = in->flags;
1057         out->type = in->type;
1058         strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1059         out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1060 }
1061
1062 /**
1063  * drm_mode_getresources - get graphics configuration
1064  * @inode: inode from the ioctl
1065  * @filp: file * from the ioctl
1066  * @cmd: cmd from ioctl
1067  * @arg: arg from ioctl
1068  *
1069  * LOCKING:
1070  * Takes mode config lock.
1071  *
1072  * Construct a set of configuration description structures and return
1073  * them to the user, including CRTC, connector and framebuffer configuration.
1074  *
1075  * Called by the user via ioctl.
1076  *
1077  * RETURNS:
1078  * Zero on success, errno on failure.
1079  */
1080 int drm_mode_getresources(struct drm_device *dev, void *data,
1081                           struct drm_file *file_priv)
1082 {
1083         struct drm_mode_card_res *card_res = data;
1084         struct list_head *lh;
1085         struct drm_framebuffer *fb;
1086         struct drm_connector *connector;
1087         struct drm_crtc *crtc;
1088         struct drm_encoder *encoder;
1089         int ret = 0;
1090         int connector_count = 0;
1091         int crtc_count = 0;
1092         int fb_count = 0;
1093         int encoder_count = 0;
1094         int copied = 0, i;
1095         uint32_t __user *fb_id;
1096         uint32_t __user *crtc_id;
1097         uint32_t __user *connector_id;
1098         uint32_t __user *encoder_id;
1099         struct drm_mode_group *mode_group;
1100
1101         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1102                 return -EINVAL;
1103
1104         mutex_lock(&dev->mode_config.mutex);
1105
1106         /*
1107          * For the non-control nodes we need to limit the list of resources
1108          * by IDs in the group list for this node
1109          */
1110         list_for_each(lh, &file_priv->fbs)
1111                 fb_count++;
1112
1113         mode_group = &file_priv->master->minor->mode_group;
1114         if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1115
1116                 list_for_each(lh, &dev->mode_config.crtc_list)
1117                         crtc_count++;
1118
1119                 list_for_each(lh, &dev->mode_config.connector_list)
1120                         connector_count++;
1121
1122                 list_for_each(lh, &dev->mode_config.encoder_list)
1123                         encoder_count++;
1124         } else {
1125
1126                 crtc_count = mode_group->num_crtcs;
1127                 connector_count = mode_group->num_connectors;
1128                 encoder_count = mode_group->num_encoders;
1129         }
1130
1131         card_res->max_height = dev->mode_config.max_height;
1132         card_res->min_height = dev->mode_config.min_height;
1133         card_res->max_width = dev->mode_config.max_width;
1134         card_res->min_width = dev->mode_config.min_width;
1135
1136         /* handle this in 4 parts */
1137         /* FBs */
1138         if (card_res->count_fbs >= fb_count) {
1139                 copied = 0;
1140                 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1141                 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1142                         if (put_user(fb->base.id, fb_id + copied)) {
1143                                 ret = -EFAULT;
1144                                 goto out;
1145                         }
1146                         copied++;
1147                 }
1148         }
1149         card_res->count_fbs = fb_count;
1150
1151         /* CRTCs */
1152         if (card_res->count_crtcs >= crtc_count) {
1153                 copied = 0;
1154                 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1155                 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1156                         list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1157                                             head) {
1158                                 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1159                                 if (put_user(crtc->base.id, crtc_id + copied)) {
1160                                         ret = -EFAULT;
1161                                         goto out;
1162                                 }
1163                                 copied++;
1164                         }
1165                 } else {
1166                         for (i = 0; i < mode_group->num_crtcs; i++) {
1167                                 if (put_user(mode_group->id_list[i],
1168                                              crtc_id + copied)) {
1169                                         ret = -EFAULT;
1170                                         goto out;
1171                                 }
1172                                 copied++;
1173                         }
1174                 }
1175         }
1176         card_res->count_crtcs = crtc_count;
1177
1178         /* Encoders */
1179         if (card_res->count_encoders >= encoder_count) {
1180                 copied = 0;
1181                 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1182                 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1183                         list_for_each_entry(encoder,
1184                                             &dev->mode_config.encoder_list,
1185                                             head) {
1186                                 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1187                                                 drm_get_encoder_name(encoder));
1188                                 if (put_user(encoder->base.id, encoder_id +
1189                                              copied)) {
1190                                         ret = -EFAULT;
1191                                         goto out;
1192                                 }
1193                                 copied++;
1194                         }
1195                 } else {
1196                         for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1197                                 if (put_user(mode_group->id_list[i],
1198                                              encoder_id + copied)) {
1199                                         ret = -EFAULT;
1200                                         goto out;
1201                                 }
1202                                 copied++;
1203                         }
1204
1205                 }
1206         }
1207         card_res->count_encoders = encoder_count;
1208
1209         /* Connectors */
1210         if (card_res->count_connectors >= connector_count) {
1211                 copied = 0;
1212                 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1213                 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1214                         list_for_each_entry(connector,
1215                                             &dev->mode_config.connector_list,
1216                                             head) {
1217                                 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1218                                         connector->base.id,
1219                                         drm_get_connector_name(connector));
1220                                 if (put_user(connector->base.id,
1221                                              connector_id + copied)) {
1222                                         ret = -EFAULT;
1223                                         goto out;
1224                                 }
1225                                 copied++;
1226                         }
1227                 } else {
1228                         int start = mode_group->num_crtcs +
1229                                 mode_group->num_encoders;
1230                         for (i = start; i < start + mode_group->num_connectors; i++) {
1231                                 if (put_user(mode_group->id_list[i],
1232                                              connector_id + copied)) {
1233                                         ret = -EFAULT;
1234                                         goto out;
1235                                 }
1236                                 copied++;
1237                         }
1238                 }
1239         }
1240         card_res->count_connectors = connector_count;
1241
1242         DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
1243                   card_res->count_connectors, card_res->count_encoders);
1244
1245 out:
1246         mutex_unlock(&dev->mode_config.mutex);
1247         return ret;
1248 }
1249
1250 /**
1251  * drm_mode_getcrtc - get CRTC configuration
1252  * @inode: inode from the ioctl
1253  * @filp: file * from the ioctl
1254  * @cmd: cmd from ioctl
1255  * @arg: arg from ioctl
1256  *
1257  * LOCKING:
1258  * Takes mode config lock.
1259  *
1260  * Construct a CRTC configuration structure to return to the user.
1261  *
1262  * Called by the user via ioctl.
1263  *
1264  * RETURNS:
1265  * Zero on success, errno on failure.
1266  */
1267 int drm_mode_getcrtc(struct drm_device *dev,
1268                      void *data, struct drm_file *file_priv)
1269 {
1270         struct drm_mode_crtc *crtc_resp = data;
1271         struct drm_crtc *crtc;
1272         struct drm_mode_object *obj;
1273         int ret = 0;
1274
1275         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1276                 return -EINVAL;
1277
1278         mutex_lock(&dev->mode_config.mutex);
1279
1280         obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1281                                    DRM_MODE_OBJECT_CRTC);
1282         if (!obj) {
1283                 ret = -EINVAL;
1284                 goto out;
1285         }
1286         crtc = obj_to_crtc(obj);
1287
1288         crtc_resp->x = crtc->x;
1289         crtc_resp->y = crtc->y;
1290         crtc_resp->gamma_size = crtc->gamma_size;
1291         if (crtc->fb)
1292                 crtc_resp->fb_id = crtc->fb->base.id;
1293         else
1294                 crtc_resp->fb_id = 0;
1295
1296         if (crtc->enabled) {
1297
1298                 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1299                 crtc_resp->mode_valid = 1;
1300
1301         } else {
1302                 crtc_resp->mode_valid = 0;
1303         }
1304
1305 out:
1306         mutex_unlock(&dev->mode_config.mutex);
1307         return ret;
1308 }
1309
1310 /**
1311  * drm_mode_getconnector - get connector configuration
1312  * @inode: inode from the ioctl
1313  * @filp: file * from the ioctl
1314  * @cmd: cmd from ioctl
1315  * @arg: arg from ioctl
1316  *
1317  * LOCKING:
1318  * Takes mode config lock.
1319  *
1320  * Construct a connector configuration structure to return to the user.
1321  *
1322  * Called by the user via ioctl.
1323  *
1324  * RETURNS:
1325  * Zero on success, errno on failure.
1326  */
1327 int drm_mode_getconnector(struct drm_device *dev, void *data,
1328                           struct drm_file *file_priv)
1329 {
1330         struct drm_mode_get_connector *out_resp = data;
1331         struct drm_mode_object *obj;
1332         struct drm_connector *connector;
1333         struct drm_display_mode *mode;
1334         int mode_count = 0;
1335         int props_count = 0;
1336         int encoders_count = 0;
1337         int ret = 0;
1338         int copied = 0;
1339         int i;
1340         struct drm_mode_modeinfo u_mode;
1341         struct drm_mode_modeinfo __user *mode_ptr;
1342         uint32_t __user *prop_ptr;
1343         uint64_t __user *prop_values;
1344         uint32_t __user *encoder_ptr;
1345
1346         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1347                 return -EINVAL;
1348
1349         memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1350
1351         DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
1352
1353         mutex_lock(&dev->mode_config.mutex);
1354
1355         obj = drm_mode_object_find(dev, out_resp->connector_id,
1356                                    DRM_MODE_OBJECT_CONNECTOR);
1357         if (!obj) {
1358                 ret = -EINVAL;
1359                 goto out;
1360         }
1361         connector = obj_to_connector(obj);
1362
1363         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1364                 if (connector->property_ids[i] != 0) {
1365                         props_count++;
1366                 }
1367         }
1368
1369         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1370                 if (connector->encoder_ids[i] != 0) {
1371                         encoders_count++;
1372                 }
1373         }
1374
1375         if (out_resp->count_modes == 0) {
1376                 connector->funcs->fill_modes(connector,
1377                                              dev->mode_config.max_width,
1378                                              dev->mode_config.max_height);
1379         }
1380
1381         /* delayed so we get modes regardless of pre-fill_modes state */
1382         list_for_each_entry(mode, &connector->modes, head)
1383                 mode_count++;
1384
1385         out_resp->connector_id = connector->base.id;
1386         out_resp->connector_type = connector->connector_type;
1387         out_resp->connector_type_id = connector->connector_type_id;
1388         out_resp->mm_width = connector->display_info.width_mm;
1389         out_resp->mm_height = connector->display_info.height_mm;
1390         out_resp->subpixel = connector->display_info.subpixel_order;
1391         out_resp->connection = connector->status;
1392         if (connector->encoder)
1393                 out_resp->encoder_id = connector->encoder->base.id;
1394         else
1395                 out_resp->encoder_id = 0;
1396
1397         /*
1398          * This ioctl is called twice, once to determine how much space is
1399          * needed, and the 2nd time to fill it.
1400          */
1401         if ((out_resp->count_modes >= mode_count) && mode_count) {
1402                 copied = 0;
1403                 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
1404                 list_for_each_entry(mode, &connector->modes, head) {
1405                         drm_crtc_convert_to_umode(&u_mode, mode);
1406                         if (copy_to_user(mode_ptr + copied,
1407                                          &u_mode, sizeof(u_mode))) {
1408                                 ret = -EFAULT;
1409                                 goto out;
1410                         }
1411                         copied++;
1412                 }
1413         }
1414         out_resp->count_modes = mode_count;
1415
1416         if ((out_resp->count_props >= props_count) && props_count) {
1417                 copied = 0;
1418                 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1419                 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
1420                 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1421                         if (connector->property_ids[i] != 0) {
1422                                 if (put_user(connector->property_ids[i],
1423                                              prop_ptr + copied)) {
1424                                         ret = -EFAULT;
1425                                         goto out;
1426                                 }
1427
1428                                 if (put_user(connector->property_values[i],
1429                                              prop_values + copied)) {
1430                                         ret = -EFAULT;
1431                                         goto out;
1432                                 }
1433                                 copied++;
1434                         }
1435                 }
1436         }
1437         out_resp->count_props = props_count;
1438
1439         if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1440                 copied = 0;
1441                 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
1442                 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1443                         if (connector->encoder_ids[i] != 0) {
1444                                 if (put_user(connector->encoder_ids[i],
1445                                              encoder_ptr + copied)) {
1446                                         ret = -EFAULT;
1447                                         goto out;
1448                                 }
1449                                 copied++;
1450                         }
1451                 }
1452         }
1453         out_resp->count_encoders = encoders_count;
1454
1455 out:
1456         mutex_unlock(&dev->mode_config.mutex);
1457         return ret;
1458 }
1459
1460 int drm_mode_getencoder(struct drm_device *dev, void *data,
1461                         struct drm_file *file_priv)
1462 {
1463         struct drm_mode_get_encoder *enc_resp = data;
1464         struct drm_mode_object *obj;
1465         struct drm_encoder *encoder;
1466         int ret = 0;
1467
1468         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1469                 return -EINVAL;
1470
1471         mutex_lock(&dev->mode_config.mutex);
1472         obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1473                                    DRM_MODE_OBJECT_ENCODER);
1474         if (!obj) {
1475                 ret = -EINVAL;
1476                 goto out;
1477         }
1478         encoder = obj_to_encoder(obj);
1479
1480         if (encoder->crtc)
1481                 enc_resp->crtc_id = encoder->crtc->base.id;
1482         else
1483                 enc_resp->crtc_id = 0;
1484         enc_resp->encoder_type = encoder->encoder_type;
1485         enc_resp->encoder_id = encoder->base.id;
1486         enc_resp->possible_crtcs = encoder->possible_crtcs;
1487         enc_resp->possible_clones = encoder->possible_clones;
1488
1489 out:
1490         mutex_unlock(&dev->mode_config.mutex);
1491         return ret;
1492 }
1493
1494 /**
1495  * drm_mode_getplane_res - get plane info
1496  * @dev: DRM device
1497  * @data: ioctl data
1498  * @file_priv: DRM file info
1499  *
1500  * LOCKING:
1501  * Takes mode config lock.
1502  *
1503  * Return an plane count and set of IDs.
1504  */
1505 int drm_mode_getplane_res(struct drm_device *dev, void *data,
1506                             struct drm_file *file_priv)
1507 {
1508         struct drm_mode_get_plane_res *plane_resp = data;
1509         struct drm_mode_config *config;
1510         struct drm_plane *plane;
1511         uint32_t __user *plane_ptr;
1512         int copied = 0, ret = 0;
1513
1514         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1515                 return -EINVAL;
1516
1517         mutex_lock(&dev->mode_config.mutex);
1518         config = &dev->mode_config;
1519
1520         /*
1521          * This ioctl is called twice, once to determine how much space is
1522          * needed, and the 2nd time to fill it.
1523          */
1524         if (config->num_plane &&
1525             (plane_resp->count_planes >= config->num_plane)) {
1526                 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
1527
1528                 list_for_each_entry(plane, &config->plane_list, head) {
1529                         if (put_user(plane->base.id, plane_ptr + copied)) {
1530                                 ret = -EFAULT;
1531                                 goto out;
1532                         }
1533                         copied++;
1534                 }
1535         }
1536         plane_resp->count_planes = config->num_plane;
1537
1538 out:
1539         mutex_unlock(&dev->mode_config.mutex);
1540         return ret;
1541 }
1542
1543 /**
1544  * drm_mode_getplane - get plane info
1545  * @dev: DRM device
1546  * @data: ioctl data
1547  * @file_priv: DRM file info
1548  *
1549  * LOCKING:
1550  * Takes mode config lock.
1551  *
1552  * Return plane info, including formats supported, gamma size, any
1553  * current fb, etc.
1554  */
1555 int drm_mode_getplane(struct drm_device *dev, void *data,
1556                         struct drm_file *file_priv)
1557 {
1558         struct drm_mode_get_plane *plane_resp = data;
1559         struct drm_mode_object *obj;
1560         struct drm_plane *plane;
1561         uint32_t __user *format_ptr;
1562         int ret = 0;
1563
1564         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1565                 return -EINVAL;
1566
1567         mutex_lock(&dev->mode_config.mutex);
1568         obj = drm_mode_object_find(dev, plane_resp->plane_id,
1569                                    DRM_MODE_OBJECT_PLANE);
1570         if (!obj) {
1571                 ret = -ENOENT;
1572                 goto out;
1573         }
1574         plane = obj_to_plane(obj);
1575
1576         if (plane->crtc)
1577                 plane_resp->crtc_id = plane->crtc->base.id;
1578         else
1579                 plane_resp->crtc_id = 0;
1580
1581         if (plane->fb)
1582                 plane_resp->fb_id = plane->fb->base.id;
1583         else
1584                 plane_resp->fb_id = 0;
1585
1586         plane_resp->plane_id = plane->base.id;
1587         plane_resp->possible_crtcs = plane->possible_crtcs;
1588         plane_resp->gamma_size = plane->gamma_size;
1589
1590         /*
1591          * This ioctl is called twice, once to determine how much space is
1592          * needed, and the 2nd time to fill it.
1593          */
1594         if (plane->format_count &&
1595             (plane_resp->count_format_types >= plane->format_count)) {
1596                 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
1597                 if (copy_to_user(format_ptr,
1598                                  plane->format_types,
1599                                  sizeof(uint32_t) * plane->format_count)) {
1600                         ret = -EFAULT;
1601                         goto out;
1602                 }
1603         }
1604         plane_resp->count_format_types = plane->format_count;
1605
1606 out:
1607         mutex_unlock(&dev->mode_config.mutex);
1608         return ret;
1609 }
1610
1611 /**
1612  * drm_mode_setplane - set up or tear down an plane
1613  * @dev: DRM device
1614  * @data: ioctl data*
1615  * @file_prive: DRM file info
1616  *
1617  * LOCKING:
1618  * Takes mode config lock.
1619  *
1620  * Set plane info, including placement, fb, scaling, and other factors.
1621  * Or pass a NULL fb to disable.
1622  */
1623 int drm_mode_setplane(struct drm_device *dev, void *data,
1624                         struct drm_file *file_priv)
1625 {
1626         struct drm_mode_set_plane *plane_req = data;
1627         struct drm_mode_object *obj;
1628         struct drm_plane *plane;
1629         struct drm_crtc *crtc;
1630         struct drm_framebuffer *fb;
1631         int ret = 0;
1632         unsigned int fb_width, fb_height;
1633         int i;
1634
1635         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1636                 return -EINVAL;
1637
1638         mutex_lock(&dev->mode_config.mutex);
1639
1640         /*
1641          * First, find the plane, crtc, and fb objects.  If not available,
1642          * we don't bother to call the driver.
1643          */
1644         obj = drm_mode_object_find(dev, plane_req->plane_id,
1645                                    DRM_MODE_OBJECT_PLANE);
1646         if (!obj) {
1647                 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1648                               plane_req->plane_id);
1649                 ret = -ENOENT;
1650                 goto out;
1651         }
1652         plane = obj_to_plane(obj);
1653
1654         /* No fb means shut it down */
1655         if (!plane_req->fb_id) {
1656                 plane->funcs->disable_plane(plane);
1657                 plane->crtc = NULL;
1658                 plane->fb = NULL;
1659                 goto out;
1660         }
1661
1662         obj = drm_mode_object_find(dev, plane_req->crtc_id,
1663                                    DRM_MODE_OBJECT_CRTC);
1664         if (!obj) {
1665                 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1666                               plane_req->crtc_id);
1667                 ret = -ENOENT;
1668                 goto out;
1669         }
1670         crtc = obj_to_crtc(obj);
1671
1672         obj = drm_mode_object_find(dev, plane_req->fb_id,
1673                                    DRM_MODE_OBJECT_FB);
1674         if (!obj) {
1675                 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1676                               plane_req->fb_id);
1677                 ret = -ENOENT;
1678                 goto out;
1679         }
1680         fb = obj_to_fb(obj);
1681
1682         /* Check whether this plane supports the fb pixel format. */
1683         for (i = 0; i < plane->format_count; i++)
1684                 if (fb->pixel_format == plane->format_types[i])
1685                         break;
1686         if (i == plane->format_count) {
1687                 DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format);
1688                 ret = -EINVAL;
1689                 goto out;
1690         }
1691
1692         fb_width = fb->width << 16;
1693         fb_height = fb->height << 16;
1694
1695         /* Make sure source coordinates are inside the fb. */
1696         if (plane_req->src_w > fb_width ||
1697             plane_req->src_x > fb_width - plane_req->src_w ||
1698             plane_req->src_h > fb_height ||
1699             plane_req->src_y > fb_height - plane_req->src_h) {
1700                 DRM_DEBUG_KMS("Invalid source coordinates "
1701                               "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1702                               plane_req->src_w >> 16,
1703                               ((plane_req->src_w & 0xffff) * 15625) >> 10,
1704                               plane_req->src_h >> 16,
1705                               ((plane_req->src_h & 0xffff) * 15625) >> 10,
1706                               plane_req->src_x >> 16,
1707                               ((plane_req->src_x & 0xffff) * 15625) >> 10,
1708                               plane_req->src_y >> 16,
1709                               ((plane_req->src_y & 0xffff) * 15625) >> 10);
1710                 ret = -ENOSPC;
1711                 goto out;
1712         }
1713
1714         /* Give drivers some help against integer overflows */
1715         if (plane_req->crtc_w > INT_MAX ||
1716             plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1717             plane_req->crtc_h > INT_MAX ||
1718             plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1719                 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1720                               plane_req->crtc_w, plane_req->crtc_h,
1721                               plane_req->crtc_x, plane_req->crtc_y);
1722                 ret = -ERANGE;
1723                 goto out;
1724         }
1725
1726         ret = plane->funcs->update_plane(plane, crtc, fb,
1727                                          plane_req->crtc_x, plane_req->crtc_y,
1728                                          plane_req->crtc_w, plane_req->crtc_h,
1729                                          plane_req->src_x, plane_req->src_y,
1730                                          plane_req->src_w, plane_req->src_h);
1731         if (!ret) {
1732                 plane->crtc = crtc;
1733                 plane->fb = fb;
1734         }
1735
1736 out:
1737         mutex_unlock(&dev->mode_config.mutex);
1738
1739         return ret;
1740 }
1741
1742 /**
1743  * drm_mode_setcrtc - set CRTC configuration
1744  * @inode: inode from the ioctl
1745  * @filp: file * from the ioctl
1746  * @cmd: cmd from ioctl
1747  * @arg: arg from ioctl
1748  *
1749  * LOCKING:
1750  * Takes mode config lock.
1751  *
1752  * Build a new CRTC configuration based on user request.
1753  *
1754  * Called by the user via ioctl.
1755  *
1756  * RETURNS:
1757  * Zero on success, errno on failure.
1758  */
1759 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1760                      struct drm_file *file_priv)
1761 {
1762         struct drm_mode_config *config = &dev->mode_config;
1763         struct drm_mode_crtc *crtc_req = data;
1764         struct drm_mode_object *obj;
1765         struct drm_crtc *crtc;
1766         struct drm_connector **connector_set = NULL, *connector;
1767         struct drm_framebuffer *fb = NULL;
1768         struct drm_display_mode *mode = NULL;
1769         struct drm_mode_set set;
1770         uint32_t __user *set_connectors_ptr;
1771         int ret = 0;
1772         int i;
1773
1774         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1775                 return -EINVAL;
1776
1777         /* For some reason crtc x/y offsets are signed internally. */
1778         if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
1779                 return -ERANGE;
1780
1781         mutex_lock(&dev->mode_config.mutex);
1782         obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1783                                    DRM_MODE_OBJECT_CRTC);
1784         if (!obj) {
1785                 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1786                 ret = -EINVAL;
1787                 goto out;
1788         }
1789         crtc = obj_to_crtc(obj);
1790         DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1791
1792         if (crtc_req->mode_valid) {
1793                 /* If we have a mode we need a framebuffer. */
1794                 /* If we pass -1, set the mode with the currently bound fb */
1795                 if (crtc_req->fb_id == -1) {
1796                         if (!crtc->fb) {
1797                                 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
1798                                 ret = -EINVAL;
1799                                 goto out;
1800                         }
1801                         fb = crtc->fb;
1802                 } else {
1803                         obj = drm_mode_object_find(dev, crtc_req->fb_id,
1804                                                    DRM_MODE_OBJECT_FB);
1805                         if (!obj) {
1806                                 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1807                                                 crtc_req->fb_id);
1808                                 ret = -EINVAL;
1809                                 goto out;
1810                         }
1811                         fb = obj_to_fb(obj);
1812                 }
1813
1814                 mode = drm_mode_create(dev);
1815                 drm_crtc_convert_umode(mode, &crtc_req->mode);
1816                 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1817         }
1818
1819         if (crtc_req->count_connectors == 0 && mode) {
1820                 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1821                 ret = -EINVAL;
1822                 goto out;
1823         }
1824
1825         if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
1826                 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1827                           crtc_req->count_connectors);
1828                 ret = -EINVAL;
1829                 goto out;
1830         }
1831
1832         if (crtc_req->count_connectors > 0) {
1833                 u32 out_id;
1834
1835                 /* Avoid unbounded kernel memory allocation */
1836                 if (crtc_req->count_connectors > config->num_connector) {
1837                         ret = -EINVAL;
1838                         goto out;
1839                 }
1840
1841                 connector_set = kmalloc(crtc_req->count_connectors *
1842                                         sizeof(struct drm_connector *),
1843                                         GFP_KERNEL);
1844                 if (!connector_set) {
1845                         ret = -ENOMEM;
1846                         goto out;
1847                 }
1848
1849                 for (i = 0; i < crtc_req->count_connectors; i++) {
1850                         set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
1851                         if (get_user(out_id, &set_connectors_ptr[i])) {
1852                                 ret = -EFAULT;
1853                                 goto out;
1854                         }
1855
1856                         obj = drm_mode_object_find(dev, out_id,
1857                                                    DRM_MODE_OBJECT_CONNECTOR);
1858                         if (!obj) {
1859                                 DRM_DEBUG_KMS("Connector id %d unknown\n",
1860                                                 out_id);
1861                                 ret = -EINVAL;
1862                                 goto out;
1863                         }
1864                         connector = obj_to_connector(obj);
1865                         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1866                                         connector->base.id,
1867                                         drm_get_connector_name(connector));
1868
1869                         connector_set[i] = connector;
1870                 }
1871         }
1872
1873         set.crtc = crtc;
1874         set.x = crtc_req->x;
1875         set.y = crtc_req->y;
1876         set.mode = mode;
1877         set.connectors = connector_set;
1878         set.num_connectors = crtc_req->count_connectors;
1879         set.fb = fb;
1880         ret = crtc->funcs->set_config(&set);
1881
1882 out:
1883         kfree(connector_set);
1884         mutex_unlock(&dev->mode_config.mutex);
1885         return ret;
1886 }
1887
1888 int drm_mode_cursor_ioctl(struct drm_device *dev,
1889                         void *data, struct drm_file *file_priv)
1890 {
1891         struct drm_mode_cursor *req = data;
1892         struct drm_mode_object *obj;
1893         struct drm_crtc *crtc;
1894         int ret = 0;
1895
1896         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1897                 return -EINVAL;
1898
1899         if (!req->flags)
1900                 return -EINVAL;
1901
1902         mutex_lock(&dev->mode_config.mutex);
1903         obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
1904         if (!obj) {
1905                 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1906                 ret = -EINVAL;
1907                 goto out;
1908         }
1909         crtc = obj_to_crtc(obj);
1910
1911         if (req->flags & DRM_MODE_CURSOR_BO) {
1912                 if (!crtc->funcs->cursor_set) {
1913                         ret = -ENXIO;
1914                         goto out;
1915                 }
1916                 /* Turns off the cursor if handle is 0 */
1917                 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1918                                               req->width, req->height);
1919         }
1920
1921         if (req->flags & DRM_MODE_CURSOR_MOVE) {
1922                 if (crtc->funcs->cursor_move) {
1923                         ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1924                 } else {
1925                         ret = -EFAULT;
1926                         goto out;
1927                 }
1928         }
1929 out:
1930         mutex_unlock(&dev->mode_config.mutex);
1931         return ret;
1932 }
1933
1934 /* Original addfb only supported RGB formats, so figure out which one */
1935 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
1936 {
1937         uint32_t fmt;
1938
1939         switch (bpp) {
1940         case 8:
1941                 fmt = DRM_FORMAT_RGB332;
1942                 break;
1943         case 16:
1944                 if (depth == 15)
1945                         fmt = DRM_FORMAT_XRGB1555;
1946                 else
1947                         fmt = DRM_FORMAT_RGB565;
1948                 break;
1949         case 24:
1950                 fmt = DRM_FORMAT_RGB888;
1951                 break;
1952         case 32:
1953                 if (depth == 24)
1954                         fmt = DRM_FORMAT_XRGB8888;
1955                 else if (depth == 30)
1956                         fmt = DRM_FORMAT_XRGB2101010;
1957                 else
1958                         fmt = DRM_FORMAT_ARGB8888;
1959                 break;
1960         default:
1961                 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
1962                 fmt = DRM_FORMAT_XRGB8888;
1963                 break;
1964         }
1965
1966         return fmt;
1967 }
1968 EXPORT_SYMBOL(drm_mode_legacy_fb_format);
1969
1970 /**
1971  * drm_mode_addfb - add an FB to the graphics configuration
1972  * @inode: inode from the ioctl
1973  * @filp: file * from the ioctl
1974  * @cmd: cmd from ioctl
1975  * @arg: arg from ioctl
1976  *
1977  * LOCKING:
1978  * Takes mode config lock.
1979  *
1980  * Add a new FB to the specified CRTC, given a user request.
1981  *
1982  * Called by the user via ioctl.
1983  *
1984  * RETURNS:
1985  * Zero on success, errno on failure.
1986  */
1987 int drm_mode_addfb(struct drm_device *dev,
1988                    void *data, struct drm_file *file_priv)
1989 {
1990         struct drm_mode_fb_cmd *or = data;
1991         struct drm_mode_fb_cmd2 r = {};
1992         struct drm_mode_config *config = &dev->mode_config;
1993         struct drm_framebuffer *fb;
1994         int ret = 0;
1995
1996         /* Use new struct with format internally */
1997         r.fb_id = or->fb_id;
1998         r.width = or->width;
1999         r.height = or->height;
2000         r.pitches[0] = or->pitch;
2001         r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2002         r.handles[0] = or->handle;
2003
2004         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2005                 return -EINVAL;
2006
2007         if ((config->min_width > r.width) || (r.width > config->max_width))
2008                 return -EINVAL;
2009
2010         if ((config->min_height > r.height) || (r.height > config->max_height))
2011                 return -EINVAL;
2012
2013         mutex_lock(&dev->mode_config.mutex);
2014
2015         /* TODO check buffer is sufficiently large */
2016         /* TODO setup destructor callback */
2017
2018         fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2019         if (IS_ERR(fb)) {
2020                 DRM_ERROR("could not create framebuffer\n");
2021                 ret = PTR_ERR(fb);
2022                 goto out;
2023         }
2024
2025         or->fb_id = fb->base.id;
2026         list_add(&fb->filp_head, &file_priv->fbs);
2027         DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2028
2029 out:
2030         mutex_unlock(&dev->mode_config.mutex);
2031         return ret;
2032 }
2033
2034 static int format_check(struct drm_mode_fb_cmd2 *r)
2035 {
2036         uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2037
2038         switch (format) {
2039         case DRM_FORMAT_C8:
2040         case DRM_FORMAT_RGB332:
2041         case DRM_FORMAT_BGR233:
2042         case DRM_FORMAT_XRGB4444:
2043         case DRM_FORMAT_XBGR4444:
2044         case DRM_FORMAT_RGBX4444:
2045         case DRM_FORMAT_BGRX4444:
2046         case DRM_FORMAT_ARGB4444:
2047         case DRM_FORMAT_ABGR4444:
2048         case DRM_FORMAT_RGBA4444:
2049         case DRM_FORMAT_BGRA4444:
2050         case DRM_FORMAT_XRGB1555:
2051         case DRM_FORMAT_XBGR1555:
2052         case DRM_FORMAT_RGBX5551:
2053         case DRM_FORMAT_BGRX5551:
2054         case DRM_FORMAT_ARGB1555:
2055         case DRM_FORMAT_ABGR1555:
2056         case DRM_FORMAT_RGBA5551:
2057         case DRM_FORMAT_BGRA5551:
2058         case DRM_FORMAT_RGB565:
2059         case DRM_FORMAT_BGR565:
2060         case DRM_FORMAT_RGB888:
2061         case DRM_FORMAT_BGR888:
2062         case DRM_FORMAT_XRGB8888:
2063         case DRM_FORMAT_XBGR8888:
2064         case DRM_FORMAT_RGBX8888:
2065         case DRM_FORMAT_BGRX8888:
2066         case DRM_FORMAT_ARGB8888:
2067         case DRM_FORMAT_ABGR8888:
2068         case DRM_FORMAT_RGBA8888:
2069         case DRM_FORMAT_BGRA8888:
2070         case DRM_FORMAT_XRGB2101010:
2071         case DRM_FORMAT_XBGR2101010:
2072         case DRM_FORMAT_RGBX1010102:
2073         case DRM_FORMAT_BGRX1010102:
2074         case DRM_FORMAT_ARGB2101010:
2075         case DRM_FORMAT_ABGR2101010:
2076         case DRM_FORMAT_RGBA1010102:
2077         case DRM_FORMAT_BGRA1010102:
2078         case DRM_FORMAT_YUYV:
2079         case DRM_FORMAT_YVYU:
2080         case DRM_FORMAT_UYVY:
2081         case DRM_FORMAT_VYUY:
2082         case DRM_FORMAT_AYUV:
2083         case DRM_FORMAT_NV12:
2084         case DRM_FORMAT_NV21:
2085         case DRM_FORMAT_NV16:
2086         case DRM_FORMAT_NV61:
2087         case DRM_FORMAT_YUV410:
2088         case DRM_FORMAT_YVU410:
2089         case DRM_FORMAT_YUV411:
2090         case DRM_FORMAT_YVU411:
2091         case DRM_FORMAT_YUV420:
2092         case DRM_FORMAT_YVU420:
2093         case DRM_FORMAT_YUV422:
2094         case DRM_FORMAT_YVU422:
2095         case DRM_FORMAT_YUV444:
2096         case DRM_FORMAT_YVU444:
2097                 return 0;
2098         default:
2099                 return -EINVAL;
2100         }
2101 }
2102
2103 /**
2104  * drm_mode_addfb2 - add an FB to the graphics configuration
2105  * @inode: inode from the ioctl
2106  * @filp: file * from the ioctl
2107  * @cmd: cmd from ioctl
2108  * @arg: arg from ioctl
2109  *
2110  * LOCKING:
2111  * Takes mode config lock.
2112  *
2113  * Add a new FB to the specified CRTC, given a user request with format.
2114  *
2115  * Called by the user via ioctl.
2116  *
2117  * RETURNS:
2118  * Zero on success, errno on failure.
2119  */
2120 int drm_mode_addfb2(struct drm_device *dev,
2121                     void *data, struct drm_file *file_priv)
2122 {
2123         struct drm_mode_fb_cmd2 *r = data;
2124         struct drm_mode_config *config = &dev->mode_config;
2125         struct drm_framebuffer *fb;
2126         int ret = 0;
2127
2128         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2129                 return -EINVAL;
2130
2131         if ((config->min_width > r->width) || (r->width > config->max_width)) {
2132                 DRM_ERROR("bad framebuffer width %d, should be >= %d && <= %d\n",
2133                           r->width, config->min_width, config->max_width);
2134                 return -EINVAL;
2135         }
2136         if ((config->min_height > r->height) || (r->height > config->max_height)) {
2137                 DRM_ERROR("bad framebuffer height %d, should be >= %d && <= %d\n",
2138                           r->height, config->min_height, config->max_height);
2139                 return -EINVAL;
2140         }
2141
2142         ret = format_check(r);
2143         if (ret) {
2144                 DRM_ERROR("bad framebuffer format 0x%08x\n", r->pixel_format);
2145                 return ret;
2146         }
2147
2148         mutex_lock(&dev->mode_config.mutex);
2149
2150         fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
2151         if (IS_ERR(fb)) {
2152                 DRM_ERROR("could not create framebuffer\n");
2153                 ret = PTR_ERR(fb);
2154                 goto out;
2155         }
2156
2157         r->fb_id = fb->base.id;
2158         list_add(&fb->filp_head, &file_priv->fbs);
2159         DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2160
2161 out:
2162         mutex_unlock(&dev->mode_config.mutex);
2163         return ret;
2164 }
2165
2166 /**
2167  * drm_mode_rmfb - remove an FB from the configuration
2168  * @inode: inode from the ioctl
2169  * @filp: file * from the ioctl
2170  * @cmd: cmd from ioctl
2171  * @arg: arg from ioctl
2172  *
2173  * LOCKING:
2174  * Takes mode config lock.
2175  *
2176  * Remove the FB specified by the user.
2177  *
2178  * Called by the user via ioctl.
2179  *
2180  * RETURNS:
2181  * Zero on success, errno on failure.
2182  */
2183 int drm_mode_rmfb(struct drm_device *dev,
2184                    void *data, struct drm_file *file_priv)
2185 {
2186         struct drm_mode_object *obj;
2187         struct drm_framebuffer *fb = NULL;
2188         struct drm_framebuffer *fbl = NULL;
2189         uint32_t *id = data;
2190         int ret = 0;
2191         int found = 0;
2192
2193         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2194                 return -EINVAL;
2195
2196         mutex_lock(&dev->mode_config.mutex);
2197         obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
2198         /* TODO check that we really get a framebuffer back. */
2199         if (!obj) {
2200                 ret = -EINVAL;
2201                 goto out;
2202         }
2203         fb = obj_to_fb(obj);
2204
2205         list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2206                 if (fb == fbl)
2207                         found = 1;
2208
2209         if (!found) {
2210                 ret = -EINVAL;
2211                 goto out;
2212         }
2213
2214         /* TODO release all crtc connected to the framebuffer */
2215         /* TODO unhock the destructor from the buffer object */
2216
2217         list_del(&fb->filp_head);
2218         fb->funcs->destroy(fb);
2219
2220 out:
2221         mutex_unlock(&dev->mode_config.mutex);
2222         return ret;
2223 }
2224
2225 /**
2226  * drm_mode_getfb - get FB info
2227  * @inode: inode from the ioctl
2228  * @filp: file * from the ioctl
2229  * @cmd: cmd from ioctl
2230  * @arg: arg from ioctl
2231  *
2232  * LOCKING:
2233  * Takes mode config lock.
2234  *
2235  * Lookup the FB given its ID and return info about it.
2236  *
2237  * Called by the user via ioctl.
2238  *
2239  * RETURNS:
2240  * Zero on success, errno on failure.
2241  */
2242 int drm_mode_getfb(struct drm_device *dev,
2243                    void *data, struct drm_file *file_priv)
2244 {
2245         struct drm_mode_fb_cmd *r = data;
2246         struct drm_mode_object *obj;
2247         struct drm_framebuffer *fb;
2248         int ret = 0;
2249
2250         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2251                 return -EINVAL;
2252
2253         mutex_lock(&dev->mode_config.mutex);
2254         obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
2255         if (!obj) {
2256                 ret = -EINVAL;
2257                 goto out;
2258         }
2259         fb = obj_to_fb(obj);
2260
2261         r->height = fb->height;
2262         r->width = fb->width;
2263         r->depth = fb->depth;
2264         r->bpp = fb->bits_per_pixel;
2265         r->pitch = fb->pitches[0];
2266         fb->funcs->create_handle(fb, file_priv, &r->handle);
2267
2268 out:
2269         mutex_unlock(&dev->mode_config.mutex);
2270         return ret;
2271 }
2272
2273 int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2274                            void *data, struct drm_file *file_priv)
2275 {
2276         struct drm_clip_rect __user *clips_ptr;
2277         struct drm_clip_rect *clips = NULL;
2278         struct drm_mode_fb_dirty_cmd *r = data;
2279         struct drm_mode_object *obj;
2280         struct drm_framebuffer *fb;
2281         unsigned flags;
2282         int num_clips;
2283         int ret = 0;
2284
2285         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2286                 return -EINVAL;
2287
2288         mutex_lock(&dev->mode_config.mutex);
2289         obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
2290         if (!obj) {
2291                 ret = -EINVAL;
2292                 goto out_err1;
2293         }
2294         fb = obj_to_fb(obj);
2295
2296         num_clips = r->num_clips;
2297         clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
2298
2299         if (!num_clips != !clips_ptr) {
2300                 ret = -EINVAL;
2301                 goto out_err1;
2302         }
2303
2304         flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2305
2306         /* If userspace annotates copy, clips must come in pairs */
2307         if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2308                 ret = -EINVAL;
2309                 goto out_err1;
2310         }
2311
2312         if (num_clips && clips_ptr) {
2313                 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2314                         ret = -EINVAL;
2315                         goto out_err1;
2316                 }
2317                 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2318                 if (!clips) {
2319                         ret = -ENOMEM;
2320                         goto out_err1;
2321                 }
2322
2323                 ret = copy_from_user(clips, clips_ptr,
2324                                      num_clips * sizeof(*clips));
2325                 if (ret) {
2326                         ret = -EFAULT;
2327                         goto out_err2;
2328                 }
2329         }
2330
2331         if (fb->funcs->dirty) {
2332                 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2333                                        clips, num_clips);
2334         } else {
2335                 ret = -ENOSYS;
2336                 goto out_err2;
2337         }
2338
2339 out_err2:
2340         kfree(clips);
2341 out_err1:
2342         mutex_unlock(&dev->mode_config.mutex);
2343         return ret;
2344 }
2345
2346
2347 /**
2348  * drm_fb_release - remove and free the FBs on this file
2349  * @filp: file * from the ioctl
2350  *
2351  * LOCKING:
2352  * Takes mode config lock.
2353  *
2354  * Destroy all the FBs associated with @filp.
2355  *
2356  * Called by the user via ioctl.
2357  *
2358  * RETURNS:
2359  * Zero on success, errno on failure.
2360  */
2361 void drm_fb_release(struct drm_file *priv)
2362 {
2363         struct drm_device *dev = priv->minor->dev;
2364         struct drm_framebuffer *fb, *tfb;
2365
2366         mutex_lock(&dev->mode_config.mutex);
2367         list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2368                 list_del(&fb->filp_head);
2369                 fb->funcs->destroy(fb);
2370         }
2371         mutex_unlock(&dev->mode_config.mutex);
2372 }
2373
2374 /**
2375  * drm_mode_attachmode - add a mode to the user mode list
2376  * @dev: DRM device
2377  * @connector: connector to add the mode to
2378  * @mode: mode to add
2379  *
2380  * Add @mode to @connector's user mode list.
2381  */
2382 static int drm_mode_attachmode(struct drm_device *dev,
2383                                struct drm_connector *connector,
2384                                struct drm_display_mode *mode)
2385 {
2386         int ret = 0;
2387
2388         list_add_tail(&mode->head, &connector->user_modes);
2389         return ret;
2390 }
2391
2392 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
2393                              struct drm_display_mode *mode)
2394 {
2395         struct drm_connector *connector;
2396         int ret = 0;
2397         struct drm_display_mode *dup_mode;
2398         int need_dup = 0;
2399         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2400                 if (!connector->encoder)
2401                         break;
2402                 if (connector->encoder->crtc == crtc) {
2403                         if (need_dup)
2404                                 dup_mode = drm_mode_duplicate(dev, mode);
2405                         else
2406                                 dup_mode = mode;
2407                         ret = drm_mode_attachmode(dev, connector, dup_mode);
2408                         if (ret)
2409                                 return ret;
2410                         need_dup = 1;
2411                 }
2412         }
2413         return 0;
2414 }
2415 EXPORT_SYMBOL(drm_mode_attachmode_crtc);
2416
2417 static int drm_mode_detachmode(struct drm_device *dev,
2418                                struct drm_connector *connector,
2419                                struct drm_display_mode *mode)
2420 {
2421         int found = 0;
2422         int ret = 0;
2423         struct drm_display_mode *match_mode, *t;
2424
2425         list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
2426                 if (drm_mode_equal(match_mode, mode)) {
2427                         list_del(&match_mode->head);
2428                         drm_mode_destroy(dev, match_mode);
2429                         found = 1;
2430                         break;
2431                 }
2432         }
2433
2434         if (!found)
2435                 ret = -EINVAL;
2436
2437         return ret;
2438 }
2439
2440 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
2441 {
2442         struct drm_connector *connector;
2443
2444         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2445                 drm_mode_detachmode(dev, connector, mode);
2446         }
2447         return 0;
2448 }
2449 EXPORT_SYMBOL(drm_mode_detachmode_crtc);
2450
2451 /**
2452  * drm_fb_attachmode - Attach a user mode to an connector
2453  * @inode: inode from the ioctl
2454  * @filp: file * from the ioctl
2455  * @cmd: cmd from ioctl
2456  * @arg: arg from ioctl
2457  *
2458  * This attaches a user specified mode to an connector.
2459  * Called by the user via ioctl.
2460  *
2461  * RETURNS:
2462  * Zero on success, errno on failure.
2463  */
2464 int drm_mode_attachmode_ioctl(struct drm_device *dev,
2465                               void *data, struct drm_file *file_priv)
2466 {
2467         struct drm_mode_mode_cmd *mode_cmd = data;
2468         struct drm_connector *connector;
2469         struct drm_display_mode *mode;
2470         struct drm_mode_object *obj;
2471         struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2472         int ret = 0;
2473
2474         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2475                 return -EINVAL;
2476
2477         mutex_lock(&dev->mode_config.mutex);
2478
2479         obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2480         if (!obj) {
2481                 ret = -EINVAL;
2482                 goto out;
2483         }
2484         connector = obj_to_connector(obj);
2485
2486         mode = drm_mode_create(dev);
2487         if (!mode) {
2488                 ret = -ENOMEM;
2489                 goto out;
2490         }
2491
2492         drm_crtc_convert_umode(mode, umode);
2493
2494         ret = drm_mode_attachmode(dev, connector, mode);
2495 out:
2496         mutex_unlock(&dev->mode_config.mutex);
2497         return ret;
2498 }
2499
2500
2501 /**
2502  * drm_fb_detachmode - Detach a user specified mode from an connector
2503  * @inode: inode from the ioctl
2504  * @filp: file * from the ioctl
2505  * @cmd: cmd from ioctl
2506  * @arg: arg from ioctl
2507  *
2508  * Called by the user via ioctl.
2509  *
2510  * RETURNS:
2511  * Zero on success, errno on failure.
2512  */
2513 int drm_mode_detachmode_ioctl(struct drm_device *dev,
2514                               void *data, struct drm_file *file_priv)
2515 {
2516         struct drm_mode_object *obj;
2517         struct drm_mode_mode_cmd *mode_cmd = data;
2518         struct drm_connector *connector;
2519         struct drm_display_mode mode;
2520         struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2521         int ret = 0;
2522
2523         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2524                 return -EINVAL;
2525
2526         mutex_lock(&dev->mode_config.mutex);
2527
2528         obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2529         if (!obj) {
2530                 ret = -EINVAL;
2531                 goto out;
2532         }
2533         connector = obj_to_connector(obj);
2534
2535         drm_crtc_convert_umode(&mode, umode);
2536         ret = drm_mode_detachmode(dev, connector, &mode);
2537 out:
2538         mutex_unlock(&dev->mode_config.mutex);
2539         return ret;
2540 }
2541
2542 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2543                                          const char *name, int num_values)
2544 {
2545         struct drm_property *property = NULL;
2546
2547         property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2548         if (!property)
2549                 return NULL;
2550
2551         if (num_values) {
2552                 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2553                 if (!property->values)
2554                         goto fail;
2555         }
2556
2557         drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2558         property->flags = flags;
2559         property->num_values = num_values;
2560         INIT_LIST_HEAD(&property->enum_blob_list);
2561
2562         if (name) {
2563                 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2564                 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2565         }
2566
2567         list_add_tail(&property->head, &dev->mode_config.property_list);
2568         return property;
2569 fail:
2570         kfree(property);
2571         return NULL;
2572 }
2573 EXPORT_SYMBOL(drm_property_create);
2574
2575 struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2576                                          const char *name,
2577                                          const struct drm_prop_enum_list *props,
2578                                          int num_values)
2579 {
2580         struct drm_property *property;
2581         int i, ret;
2582
2583         flags |= DRM_MODE_PROP_ENUM;
2584
2585         property = drm_property_create(dev, flags, name, num_values);
2586         if (!property)
2587                 return NULL;
2588
2589         for (i = 0; i < num_values; i++) {
2590                 ret = drm_property_add_enum(property, i,
2591                                       props[i].type,
2592                                       props[i].name);
2593                 if (ret) {
2594                         drm_property_destroy(dev, property);
2595                         return NULL;
2596                 }
2597         }
2598
2599         return property;
2600 }
2601 EXPORT_SYMBOL(drm_property_create_enum);
2602
2603 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
2604                                          const char *name,
2605                                          uint64_t min, uint64_t max)
2606 {
2607         struct drm_property *property;
2608
2609         flags |= DRM_MODE_PROP_RANGE;
2610
2611         property = drm_property_create(dev, flags, name, 2);
2612         if (!property)
2613                 return NULL;
2614
2615         property->values[0] = min;
2616         property->values[1] = max;
2617
2618         return property;
2619 }
2620 EXPORT_SYMBOL(drm_property_create_range);
2621
2622 int drm_property_add_enum(struct drm_property *property, int index,
2623                           uint64_t value, const char *name)
2624 {
2625         struct drm_property_enum *prop_enum;
2626
2627         if (!(property->flags & DRM_MODE_PROP_ENUM))
2628                 return -EINVAL;
2629
2630         if (!list_empty(&property->enum_blob_list)) {
2631                 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2632                         if (prop_enum->value == value) {
2633                                 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2634                                 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2635                                 return 0;
2636                         }
2637                 }
2638         }
2639
2640         prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2641         if (!prop_enum)
2642                 return -ENOMEM;
2643
2644         strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2645         prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2646         prop_enum->value = value;
2647
2648         property->values[index] = value;
2649         list_add_tail(&prop_enum->head, &property->enum_blob_list);
2650         return 0;
2651 }
2652 EXPORT_SYMBOL(drm_property_add_enum);
2653
2654 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2655 {
2656         struct drm_property_enum *prop_enum, *pt;
2657
2658         list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2659                 list_del(&prop_enum->head);
2660                 kfree(prop_enum);
2661         }
2662
2663         if (property->num_values)
2664                 kfree(property->values);
2665         drm_mode_object_put(dev, &property->base);
2666         list_del(&property->head);
2667         kfree(property);
2668 }
2669 EXPORT_SYMBOL(drm_property_destroy);
2670
2671 int drm_connector_attach_property(struct drm_connector *connector,
2672                                struct drm_property *property, uint64_t init_val)
2673 {
2674         int i;
2675
2676         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2677                 if (connector->property_ids[i] == 0) {
2678                         connector->property_ids[i] = property->base.id;
2679                         connector->property_values[i] = init_val;
2680                         break;
2681                 }
2682         }
2683
2684         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2685                 return -EINVAL;
2686         return 0;
2687 }
2688 EXPORT_SYMBOL(drm_connector_attach_property);
2689
2690 int drm_connector_property_set_value(struct drm_connector *connector,
2691                                   struct drm_property *property, uint64_t value)
2692 {
2693         int i;
2694
2695         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2696                 if (connector->property_ids[i] == property->base.id) {
2697                         connector->property_values[i] = value;
2698                         break;
2699                 }
2700         }
2701
2702         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2703                 return -EINVAL;
2704         return 0;
2705 }
2706 EXPORT_SYMBOL(drm_connector_property_set_value);
2707
2708 int drm_connector_property_get_value(struct drm_connector *connector,
2709                                   struct drm_property *property, uint64_t *val)
2710 {
2711         int i;
2712
2713         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2714                 if (connector->property_ids[i] == property->base.id) {
2715                         *val = connector->property_values[i];
2716                         break;
2717                 }
2718         }
2719
2720         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2721                 return -EINVAL;
2722         return 0;
2723 }
2724 EXPORT_SYMBOL(drm_connector_property_get_value);
2725
2726 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2727                                void *data, struct drm_file *file_priv)
2728 {
2729         struct drm_mode_object *obj;
2730         struct drm_mode_get_property *out_resp = data;
2731         struct drm_property *property;
2732         int enum_count = 0;
2733         int blob_count = 0;
2734         int value_count = 0;
2735         int ret = 0, i;
2736         int copied;
2737         struct drm_property_enum *prop_enum;
2738         struct drm_mode_property_enum __user *enum_ptr;
2739         struct drm_property_blob *prop_blob;
2740         uint32_t __user *blob_id_ptr;
2741         uint64_t __user *values_ptr;
2742         uint32_t __user *blob_length_ptr;
2743
2744         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2745                 return -EINVAL;
2746
2747         mutex_lock(&dev->mode_config.mutex);
2748         obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2749         if (!obj) {
2750                 ret = -EINVAL;
2751                 goto done;
2752         }
2753         property = obj_to_property(obj);
2754
2755         if (property->flags & DRM_MODE_PROP_ENUM) {
2756                 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2757                         enum_count++;
2758         } else if (property->flags & DRM_MODE_PROP_BLOB) {
2759                 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2760                         blob_count++;
2761         }
2762
2763         value_count = property->num_values;
2764
2765         strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2766         out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2767         out_resp->flags = property->flags;
2768
2769         if ((out_resp->count_values >= value_count) && value_count) {
2770                 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
2771                 for (i = 0; i < value_count; i++) {
2772                         if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2773                                 ret = -EFAULT;
2774                                 goto done;
2775                         }
2776                 }
2777         }
2778         out_resp->count_values = value_count;
2779
2780         if (property->flags & DRM_MODE_PROP_ENUM) {
2781                 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2782                         copied = 0;
2783                         enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
2784                         list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2785
2786                                 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2787                                         ret = -EFAULT;
2788                                         goto done;
2789                                 }
2790
2791                                 if (copy_to_user(&enum_ptr[copied].name,
2792                                                  &prop_enum->name, DRM_PROP_NAME_LEN)) {
2793                                         ret = -EFAULT;
2794                                         goto done;
2795                                 }
2796                                 copied++;
2797                         }
2798                 }
2799                 out_resp->count_enum_blobs = enum_count;
2800         }
2801
2802         if (property->flags & DRM_MODE_PROP_BLOB) {
2803                 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2804                         copied = 0;
2805                         blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
2806                         blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
2807
2808                         list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2809                                 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2810                                         ret = -EFAULT;
2811                                         goto done;
2812                                 }
2813
2814                                 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2815                                         ret = -EFAULT;
2816                                         goto done;
2817                                 }
2818
2819                                 copied++;
2820                         }
2821                 }
2822                 out_resp->count_enum_blobs = blob_count;
2823         }
2824 done:
2825         mutex_unlock(&dev->mode_config.mutex);
2826         return ret;
2827 }
2828
2829 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2830                                                           void *data)
2831 {
2832         struct drm_property_blob *blob;
2833
2834         if (!length || !data)
2835                 return NULL;
2836
2837         blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2838         if (!blob)
2839                 return NULL;
2840
2841         blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2842         blob->length = length;
2843
2844         memcpy(blob->data, data, length);
2845
2846         drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2847
2848         list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2849         return blob;
2850 }
2851
2852 static void drm_property_destroy_blob(struct drm_device *dev,
2853                                struct drm_property_blob *blob)
2854 {
2855         drm_mode_object_put(dev, &blob->base);
2856         list_del(&blob->head);
2857         kfree(blob);
2858 }
2859
2860 int drm_mode_getblob_ioctl(struct drm_device *dev,
2861                            void *data, struct drm_file *file_priv)
2862 {
2863         struct drm_mode_object *obj;
2864         struct drm_mode_get_blob *out_resp = data;
2865         struct drm_property_blob *blob;
2866         int ret = 0;
2867         void __user *blob_ptr;
2868
2869         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2870                 return -EINVAL;
2871
2872         mutex_lock(&dev->mode_config.mutex);
2873         obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2874         if (!obj) {
2875                 ret = -EINVAL;
2876                 goto done;
2877         }
2878         blob = obj_to_blob(obj);
2879
2880         if (out_resp->length == blob->length) {
2881                 blob_ptr = (void __user *)(unsigned long)out_resp->data;
2882                 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2883                         ret = -EFAULT;
2884                         goto done;
2885                 }
2886         }
2887         out_resp->length = blob->length;
2888
2889 done:
2890         mutex_unlock(&dev->mode_config.mutex);
2891         return ret;
2892 }
2893
2894 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2895                                             struct edid *edid)
2896 {
2897         struct drm_device *dev = connector->dev;
2898         int ret = 0, size;
2899
2900         if (connector->edid_blob_ptr)
2901                 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2902
2903         /* Delete edid, when there is none. */
2904         if (!edid) {
2905                 connector->edid_blob_ptr = NULL;
2906                 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2907                 return ret;
2908         }
2909
2910         size = EDID_LENGTH * (1 + edid->extensions);
2911         connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
2912                                                             size, edid);
2913
2914         ret = drm_connector_property_set_value(connector,
2915                                                dev->mode_config.edid_property,
2916                                                connector->edid_blob_ptr->base.id);
2917
2918         return ret;
2919 }
2920 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
2921
2922 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2923                                        void *data, struct drm_file *file_priv)
2924 {
2925         struct drm_mode_connector_set_property *out_resp = data;
2926         struct drm_mode_object *obj;
2927         struct drm_property *property;
2928         struct drm_connector *connector;
2929         int ret = -EINVAL;
2930         int i;
2931
2932         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2933                 return -EINVAL;
2934
2935         mutex_lock(&dev->mode_config.mutex);
2936
2937         obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2938         if (!obj) {
2939                 goto out;
2940         }
2941         connector = obj_to_connector(obj);
2942
2943         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2944                 if (connector->property_ids[i] == out_resp->prop_id)
2945                         break;
2946         }
2947
2948         if (i == DRM_CONNECTOR_MAX_PROPERTY) {
2949                 goto out;
2950         }
2951
2952         obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2953         if (!obj) {
2954                 goto out;
2955         }
2956         property = obj_to_property(obj);
2957
2958         if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2959                 goto out;
2960
2961         if (property->flags & DRM_MODE_PROP_RANGE) {
2962                 if (out_resp->value < property->values[0])
2963                         goto out;
2964
2965                 if (out_resp->value > property->values[1])
2966                         goto out;
2967         } else {
2968                 int found = 0;
2969                 for (i = 0; i < property->num_values; i++) {
2970                         if (property->values[i] == out_resp->value) {
2971                                 found = 1;
2972                                 break;
2973                         }
2974                 }
2975                 if (!found) {
2976                         goto out;
2977                 }
2978         }
2979
2980         /* Do DPMS ourselves */
2981         if (property == connector->dev->mode_config.dpms_property) {
2982                 if (connector->funcs->dpms)
2983                         (*connector->funcs->dpms)(connector, (int) out_resp->value);
2984                 ret = 0;
2985         } else if (connector->funcs->set_property)
2986                 ret = connector->funcs->set_property(connector, property, out_resp->value);
2987
2988         /* store the property value if successful */
2989         if (!ret)
2990                 drm_connector_property_set_value(connector, property, out_resp->value);
2991 out:
2992         mutex_unlock(&dev->mode_config.mutex);
2993         return ret;
2994 }
2995
2996 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
2997                                       struct drm_encoder *encoder)
2998 {
2999         int i;
3000
3001         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3002                 if (connector->encoder_ids[i] == 0) {
3003                         connector->encoder_ids[i] = encoder->base.id;
3004                         return 0;
3005                 }
3006         }
3007         return -ENOMEM;
3008 }
3009 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3010
3011 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3012                                     struct drm_encoder *encoder)
3013 {
3014         int i;
3015         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3016                 if (connector->encoder_ids[i] == encoder->base.id) {
3017                         connector->encoder_ids[i] = 0;
3018                         if (connector->encoder == encoder)
3019                                 connector->encoder = NULL;
3020                         break;
3021                 }
3022         }
3023 }
3024 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3025
3026 int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
3027                                   int gamma_size)
3028 {
3029         crtc->gamma_size = gamma_size;
3030
3031         crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3032         if (!crtc->gamma_store) {
3033                 crtc->gamma_size = 0;
3034                 return -ENOMEM;
3035         }
3036
3037         return 0;
3038 }
3039 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3040
3041 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3042                              void *data, struct drm_file *file_priv)
3043 {
3044         struct drm_mode_crtc_lut *crtc_lut = data;
3045         struct drm_mode_object *obj;
3046         struct drm_crtc *crtc;
3047         void *r_base, *g_base, *b_base;
3048         int size;
3049         int ret = 0;
3050
3051         if (!drm_core_check_feature(dev, DRIVER_MODESET))
3052                 return -EINVAL;
3053
3054         mutex_lock(&dev->mode_config.mutex);
3055         obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3056         if (!obj) {
3057                 ret = -EINVAL;
3058                 goto out;
3059         }
3060         crtc = obj_to_crtc(obj);
3061
3062         /* memcpy into gamma store */
3063         if (crtc_lut->gamma_size != crtc->gamma_size) {
3064                 ret = -EINVAL;
3065                 goto out;
3066         }
3067
3068         size = crtc_lut->gamma_size * (sizeof(uint16_t));
3069         r_base = crtc->gamma_store;
3070         if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3071                 ret = -EFAULT;
3072                 goto out;
3073         }
3074
3075         g_base = r_base + size;
3076         if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3077                 ret = -EFAULT;
3078                 goto out;
3079         }
3080
3081         b_base = g_base + size;
3082         if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3083                 ret = -EFAULT;
3084                 goto out;
3085         }
3086
3087         crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
3088
3089 out:
3090         mutex_unlock(&dev->mode_config.mutex);
3091         return ret;
3092
3093 }
3094
3095 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3096                              void *data, struct drm_file *file_priv)
3097 {
3098         struct drm_mode_crtc_lut *crtc_lut = data;
3099         struct drm_mode_object *obj;
3100         struct drm_crtc *crtc;
3101         void *r_base, *g_base, *b_base;
3102         int size;
3103         int ret = 0;
3104
3105         if (!drm_core_check_feature(dev, DRIVER_MODESET))
3106                 return -EINVAL;
3107
3108         mutex_lock(&dev->mode_config.mutex);
3109         obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3110         if (!obj) {
3111                 ret = -EINVAL;
3112                 goto out;
3113         }
3114         crtc = obj_to_crtc(obj);
3115
3116         /* memcpy into gamma store */
3117         if (crtc_lut->gamma_size != crtc->gamma_size) {
3118                 ret = -EINVAL;
3119                 goto out;
3120         }
3121
3122         size = crtc_lut->gamma_size * (sizeof(uint16_t));
3123         r_base = crtc->gamma_store;
3124         if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3125                 ret = -EFAULT;
3126                 goto out;
3127         }
3128
3129         g_base = r_base + size;
3130         if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3131                 ret = -EFAULT;
3132                 goto out;
3133         }
3134
3135         b_base = g_base + size;
3136         if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3137                 ret = -EFAULT;
3138                 goto out;
3139         }
3140 out:
3141         mutex_unlock(&dev->mode_config.mutex);
3142         return ret;
3143 }
3144
3145 int drm_mode_page_flip_ioctl(struct drm_device *dev,
3146                              void *data, struct drm_file *file_priv)
3147 {
3148         struct drm_mode_crtc_page_flip *page_flip = data;
3149         struct drm_mode_object *obj;
3150         struct drm_crtc *crtc;
3151         struct drm_framebuffer *fb;
3152         struct drm_pending_vblank_event *e = NULL;
3153         unsigned long flags;
3154         int ret = -EINVAL;
3155
3156         if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3157             page_flip->reserved != 0)
3158                 return -EINVAL;
3159
3160         mutex_lock(&dev->mode_config.mutex);
3161         obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3162         if (!obj)
3163                 goto out;
3164         crtc = obj_to_crtc(obj);
3165
3166         if (crtc->fb == NULL) {
3167                 /* The framebuffer is currently unbound, presumably
3168                  * due to a hotplug event, that userspace has not
3169                  * yet discovered.
3170                  */
3171                 ret = -EBUSY;
3172                 goto out;
3173         }
3174
3175         if (crtc->funcs->page_flip == NULL)
3176                 goto out;
3177
3178         obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
3179         if (!obj)
3180                 goto out;
3181         fb = obj_to_fb(obj);
3182
3183         if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3184                 ret = -ENOMEM;
3185                 spin_lock_irqsave(&dev->event_lock, flags);
3186                 if (file_priv->event_space < sizeof e->event) {
3187                         spin_unlock_irqrestore(&dev->event_lock, flags);
3188                         goto out;
3189                 }
3190                 file_priv->event_space -= sizeof e->event;
3191                 spin_unlock_irqrestore(&dev->event_lock, flags);
3192
3193                 e = kzalloc(sizeof *e, GFP_KERNEL);
3194                 if (e == NULL) {
3195                         spin_lock_irqsave(&dev->event_lock, flags);
3196                         file_priv->event_space += sizeof e->event;
3197                         spin_unlock_irqrestore(&dev->event_lock, flags);
3198                         goto out;
3199                 }
3200
3201                 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
3202                 e->event.base.length = sizeof e->event;
3203                 e->event.user_data = page_flip->user_data;
3204                 e->base.event = &e->event.base;
3205                 e->base.file_priv = file_priv;
3206                 e->base.destroy =
3207                         (void (*) (struct drm_pending_event *)) kfree;
3208         }
3209
3210         ret = crtc->funcs->page_flip(crtc, fb, e);
3211         if (ret) {
3212                 spin_lock_irqsave(&dev->event_lock, flags);
3213                 file_priv->event_space += sizeof e->event;
3214                 spin_unlock_irqrestore(&dev->event_lock, flags);
3215                 kfree(e);
3216         }
3217
3218 out:
3219         mutex_unlock(&dev->mode_config.mutex);
3220         return ret;
3221 }
3222
3223 void drm_mode_config_reset(struct drm_device *dev)
3224 {
3225         struct drm_crtc *crtc;
3226         struct drm_encoder *encoder;
3227         struct drm_connector *connector;
3228
3229         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3230                 if (crtc->funcs->reset)
3231                         crtc->funcs->reset(crtc);
3232
3233         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3234                 if (encoder->funcs->reset)
3235                         encoder->funcs->reset(encoder);
3236
3237         list_for_each_entry(connector, &dev->mode_config.connector_list, head)
3238                 if (connector->funcs->reset)
3239                         connector->funcs->reset(connector);
3240 }
3241 EXPORT_SYMBOL(drm_mode_config_reset);
3242
3243 int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3244                                void *data, struct drm_file *file_priv)
3245 {
3246         struct drm_mode_create_dumb *args = data;
3247
3248         if (!dev->driver->dumb_create)
3249                 return -ENOSYS;
3250         return dev->driver->dumb_create(file_priv, dev, args);
3251 }
3252
3253 int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3254                              void *data, struct drm_file *file_priv)
3255 {
3256         struct drm_mode_map_dumb *args = data;
3257
3258         /* call driver ioctl to get mmap offset */
3259         if (!dev->driver->dumb_map_offset)
3260                 return -ENOSYS;
3261
3262         return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3263 }
3264
3265 int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3266                                 void *data, struct drm_file *file_priv)
3267 {
3268         struct drm_mode_destroy_dumb *args = data;
3269
3270         if (!dev->driver->dumb_destroy)
3271                 return -ENOSYS;
3272
3273         return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3274 }
3275
3276 /*
3277  * Just need to support RGB formats here for compat with code that doesn't
3278  * use pixel formats directly yet.
3279  */
3280 void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3281                           int *bpp)
3282 {
3283         switch (format) {
3284         case DRM_FORMAT_RGB332:
3285         case DRM_FORMAT_BGR233:
3286                 *depth = 8;
3287                 *bpp = 8;
3288                 break;
3289         case DRM_FORMAT_XRGB1555:
3290         case DRM_FORMAT_XBGR1555:
3291         case DRM_FORMAT_RGBX5551:
3292         case DRM_FORMAT_BGRX5551:
3293         case DRM_FORMAT_ARGB1555:
3294         case DRM_FORMAT_ABGR1555:
3295         case DRM_FORMAT_RGBA5551:
3296         case DRM_FORMAT_BGRA5551:
3297                 *depth = 15;
3298                 *bpp = 16;
3299                 break;
3300         case DRM_FORMAT_RGB565:
3301         case DRM_FORMAT_BGR565:
3302                 *depth = 16;
3303                 *bpp = 16;
3304                 break;
3305         case DRM_FORMAT_RGB888:
3306         case DRM_FORMAT_BGR888:
3307                 *depth = 24;
3308                 *bpp = 24;
3309                 break;
3310         case DRM_FORMAT_XRGB8888:
3311         case DRM_FORMAT_XBGR8888:
3312         case DRM_FORMAT_RGBX8888:
3313         case DRM_FORMAT_BGRX8888:
3314                 *depth = 24;
3315                 *bpp = 32;
3316                 break;
3317         case DRM_FORMAT_XRGB2101010:
3318         case DRM_FORMAT_XBGR2101010:
3319         case DRM_FORMAT_RGBX1010102:
3320         case DRM_FORMAT_BGRX1010102:
3321         case DRM_FORMAT_ARGB2101010:
3322         case DRM_FORMAT_ABGR2101010:
3323         case DRM_FORMAT_RGBA1010102:
3324         case DRM_FORMAT_BGRA1010102:
3325                 *depth = 30;
3326                 *bpp = 32;
3327                 break;
3328         case DRM_FORMAT_ARGB8888:
3329         case DRM_FORMAT_ABGR8888:
3330         case DRM_FORMAT_RGBA8888:
3331         case DRM_FORMAT_BGRA8888:
3332                 *depth = 32;
3333                 *bpp = 32;
3334                 break;
3335         default:
3336                 DRM_DEBUG_KMS("unsupported pixel format\n");
3337                 *depth = 0;
3338                 *bpp = 0;
3339                 break;
3340         }
3341 }
3342 EXPORT_SYMBOL(drm_fb_get_bpp_depth);